Commit d65b4e98d7ea3038b767b70fe8be959b2913f16d
1 parent
6308240296
Exists in
smarc_imx_lf-5.15.y
and in
37 other branches
Linux 3.3-rc3
Showing 1 changed file with 1 additions and 1 deletions Inline Diff
Makefile
1 | VERSION = 3 | 1 | VERSION = 3 |
2 | PATCHLEVEL = 3 | 2 | PATCHLEVEL = 3 |
3 | SUBLEVEL = 0 | 3 | SUBLEVEL = 0 |
4 | EXTRAVERSION = -rc2 | 4 | EXTRAVERSION = -rc3 |
5 | NAME = Saber-toothed Squirrel | 5 | NAME = Saber-toothed Squirrel |
6 | 6 | ||
7 | # *DOCUMENTATION* | 7 | # *DOCUMENTATION* |
8 | # To see a list of typical targets execute "make help" | 8 | # To see a list of typical targets execute "make help" |
9 | # More info can be located in ./README | 9 | # More info can be located in ./README |
10 | # Comments in this file are targeted only to the developer, do not | 10 | # Comments in this file are targeted only to the developer, do not |
11 | # expect to learn how to build the kernel reading this file. | 11 | # expect to learn how to build the kernel reading this file. |
12 | 12 | ||
13 | # Do not: | 13 | # Do not: |
14 | # o use make's built-in rules and variables | 14 | # o use make's built-in rules and variables |
15 | # (this increases performance and avoids hard-to-debug behaviour); | 15 | # (this increases performance and avoids hard-to-debug behaviour); |
16 | # o print "Entering directory ..."; | 16 | # o print "Entering directory ..."; |
17 | MAKEFLAGS += -rR --no-print-directory | 17 | MAKEFLAGS += -rR --no-print-directory |
18 | 18 | ||
19 | # Avoid funny character set dependencies | 19 | # Avoid funny character set dependencies |
20 | unexport LC_ALL | 20 | unexport LC_ALL |
21 | LC_COLLATE=C | 21 | LC_COLLATE=C |
22 | LC_NUMERIC=C | 22 | LC_NUMERIC=C |
23 | export LC_COLLATE LC_NUMERIC | 23 | export LC_COLLATE LC_NUMERIC |
24 | 24 | ||
25 | # We are using a recursive build, so we need to do a little thinking | 25 | # We are using a recursive build, so we need to do a little thinking |
26 | # to get the ordering right. | 26 | # to get the ordering right. |
27 | # | 27 | # |
28 | # Most importantly: sub-Makefiles should only ever modify files in | 28 | # Most importantly: sub-Makefiles should only ever modify files in |
29 | # their own directory. If in some directory we have a dependency on | 29 | # their own directory. If in some directory we have a dependency on |
30 | # a file in another dir (which doesn't happen often, but it's often | 30 | # a file in another dir (which doesn't happen often, but it's often |
31 | # unavoidable when linking the built-in.o targets which finally | 31 | # unavoidable when linking the built-in.o targets which finally |
32 | # turn into vmlinux), we will call a sub make in that other dir, and | 32 | # turn into vmlinux), we will call a sub make in that other dir, and |
33 | # after that we are sure that everything which is in that other dir | 33 | # after that we are sure that everything which is in that other dir |
34 | # is now up to date. | 34 | # is now up to date. |
35 | # | 35 | # |
36 | # The only cases where we need to modify files which have global | 36 | # The only cases where we need to modify files which have global |
37 | # effects are thus separated out and done before the recursive | 37 | # effects are thus separated out and done before the recursive |
38 | # descending is started. They are now explicitly listed as the | 38 | # descending is started. They are now explicitly listed as the |
39 | # prepare rule. | 39 | # prepare rule. |
40 | 40 | ||
41 | # To put more focus on warnings, be less verbose as default | 41 | # To put more focus on warnings, be less verbose as default |
42 | # Use 'make V=1' to see the full commands | 42 | # Use 'make V=1' to see the full commands |
43 | 43 | ||
44 | ifeq ("$(origin V)", "command line") | 44 | ifeq ("$(origin V)", "command line") |
45 | KBUILD_VERBOSE = $(V) | 45 | KBUILD_VERBOSE = $(V) |
46 | endif | 46 | endif |
47 | ifndef KBUILD_VERBOSE | 47 | ifndef KBUILD_VERBOSE |
48 | KBUILD_VERBOSE = 0 | 48 | KBUILD_VERBOSE = 0 |
49 | endif | 49 | endif |
50 | 50 | ||
51 | # Call a source code checker (by default, "sparse") as part of the | 51 | # Call a source code checker (by default, "sparse") as part of the |
52 | # C compilation. | 52 | # C compilation. |
53 | # | 53 | # |
54 | # Use 'make C=1' to enable checking of only re-compiled files. | 54 | # Use 'make C=1' to enable checking of only re-compiled files. |
55 | # Use 'make C=2' to enable checking of *all* source files, regardless | 55 | # Use 'make C=2' to enable checking of *all* source files, regardless |
56 | # of whether they are re-compiled or not. | 56 | # of whether they are re-compiled or not. |
57 | # | 57 | # |
58 | # See the file "Documentation/sparse.txt" for more details, including | 58 | # See the file "Documentation/sparse.txt" for more details, including |
59 | # where to get the "sparse" utility. | 59 | # where to get the "sparse" utility. |
60 | 60 | ||
61 | ifeq ("$(origin C)", "command line") | 61 | ifeq ("$(origin C)", "command line") |
62 | KBUILD_CHECKSRC = $(C) | 62 | KBUILD_CHECKSRC = $(C) |
63 | endif | 63 | endif |
64 | ifndef KBUILD_CHECKSRC | 64 | ifndef KBUILD_CHECKSRC |
65 | KBUILD_CHECKSRC = 0 | 65 | KBUILD_CHECKSRC = 0 |
66 | endif | 66 | endif |
67 | 67 | ||
68 | # Use make M=dir to specify directory of external module to build | 68 | # Use make M=dir to specify directory of external module to build |
69 | # Old syntax make ... SUBDIRS=$PWD is still supported | 69 | # Old syntax make ... SUBDIRS=$PWD is still supported |
70 | # Setting the environment variable KBUILD_EXTMOD take precedence | 70 | # Setting the environment variable KBUILD_EXTMOD take precedence |
71 | ifdef SUBDIRS | 71 | ifdef SUBDIRS |
72 | KBUILD_EXTMOD ?= $(SUBDIRS) | 72 | KBUILD_EXTMOD ?= $(SUBDIRS) |
73 | endif | 73 | endif |
74 | 74 | ||
75 | ifeq ("$(origin M)", "command line") | 75 | ifeq ("$(origin M)", "command line") |
76 | KBUILD_EXTMOD := $(M) | 76 | KBUILD_EXTMOD := $(M) |
77 | endif | 77 | endif |
78 | 78 | ||
79 | # kbuild supports saving output files in a separate directory. | 79 | # kbuild supports saving output files in a separate directory. |
80 | # To locate output files in a separate directory two syntaxes are supported. | 80 | # To locate output files in a separate directory two syntaxes are supported. |
81 | # In both cases the working directory must be the root of the kernel src. | 81 | # In both cases the working directory must be the root of the kernel src. |
82 | # 1) O= | 82 | # 1) O= |
83 | # Use "make O=dir/to/store/output/files/" | 83 | # Use "make O=dir/to/store/output/files/" |
84 | # | 84 | # |
85 | # 2) Set KBUILD_OUTPUT | 85 | # 2) Set KBUILD_OUTPUT |
86 | # Set the environment variable KBUILD_OUTPUT to point to the directory | 86 | # Set the environment variable KBUILD_OUTPUT to point to the directory |
87 | # where the output files shall be placed. | 87 | # where the output files shall be placed. |
88 | # export KBUILD_OUTPUT=dir/to/store/output/files/ | 88 | # export KBUILD_OUTPUT=dir/to/store/output/files/ |
89 | # make | 89 | # make |
90 | # | 90 | # |
91 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment | 91 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment |
92 | # variable. | 92 | # variable. |
93 | 93 | ||
94 | 94 | ||
95 | # KBUILD_SRC is set on invocation of make in OBJ directory | 95 | # KBUILD_SRC is set on invocation of make in OBJ directory |
96 | # KBUILD_SRC is not intended to be used by the regular user (for now) | 96 | # KBUILD_SRC is not intended to be used by the regular user (for now) |
97 | ifeq ($(KBUILD_SRC),) | 97 | ifeq ($(KBUILD_SRC),) |
98 | 98 | ||
99 | # OK, Make called in directory where kernel src resides | 99 | # OK, Make called in directory where kernel src resides |
100 | # Do we want to locate output files in a separate directory? | 100 | # Do we want to locate output files in a separate directory? |
101 | ifeq ("$(origin O)", "command line") | 101 | ifeq ("$(origin O)", "command line") |
102 | KBUILD_OUTPUT := $(O) | 102 | KBUILD_OUTPUT := $(O) |
103 | endif | 103 | endif |
104 | 104 | ||
105 | ifeq ("$(origin W)", "command line") | 105 | ifeq ("$(origin W)", "command line") |
106 | export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W) | 106 | export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W) |
107 | endif | 107 | endif |
108 | 108 | ||
109 | # That's our default target when none is given on the command line | 109 | # That's our default target when none is given on the command line |
110 | PHONY := _all | 110 | PHONY := _all |
111 | _all: | 111 | _all: |
112 | 112 | ||
113 | # Cancel implicit rules on top Makefile | 113 | # Cancel implicit rules on top Makefile |
114 | $(CURDIR)/Makefile Makefile: ; | 114 | $(CURDIR)/Makefile Makefile: ; |
115 | 115 | ||
116 | ifneq ($(KBUILD_OUTPUT),) | 116 | ifneq ($(KBUILD_OUTPUT),) |
117 | # Invoke a second make in the output directory, passing relevant variables | 117 | # Invoke a second make in the output directory, passing relevant variables |
118 | # check that the output directory actually exists | 118 | # check that the output directory actually exists |
119 | saved-output := $(KBUILD_OUTPUT) | 119 | saved-output := $(KBUILD_OUTPUT) |
120 | KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) | 120 | KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) |
121 | $(if $(KBUILD_OUTPUT),, \ | 121 | $(if $(KBUILD_OUTPUT),, \ |
122 | $(error output directory "$(saved-output)" does not exist)) | 122 | $(error output directory "$(saved-output)" does not exist)) |
123 | 123 | ||
124 | PHONY += $(MAKECMDGOALS) sub-make | 124 | PHONY += $(MAKECMDGOALS) sub-make |
125 | 125 | ||
126 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make | 126 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make |
127 | $(Q)@: | 127 | $(Q)@: |
128 | 128 | ||
129 | sub-make: FORCE | 129 | sub-make: FORCE |
130 | $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ | 130 | $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ |
131 | KBUILD_SRC=$(CURDIR) \ | 131 | KBUILD_SRC=$(CURDIR) \ |
132 | KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ | 132 | KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ |
133 | $(filter-out _all sub-make,$(MAKECMDGOALS)) | 133 | $(filter-out _all sub-make,$(MAKECMDGOALS)) |
134 | 134 | ||
135 | # Leave processing to above invocation of make | 135 | # Leave processing to above invocation of make |
136 | skip-makefile := 1 | 136 | skip-makefile := 1 |
137 | endif # ifneq ($(KBUILD_OUTPUT),) | 137 | endif # ifneq ($(KBUILD_OUTPUT),) |
138 | endif # ifeq ($(KBUILD_SRC),) | 138 | endif # ifeq ($(KBUILD_SRC),) |
139 | 139 | ||
140 | # We process the rest of the Makefile if this is the final invocation of make | 140 | # We process the rest of the Makefile if this is the final invocation of make |
141 | ifeq ($(skip-makefile),) | 141 | ifeq ($(skip-makefile),) |
142 | 142 | ||
143 | # If building an external module we do not care about the all: rule | 143 | # If building an external module we do not care about the all: rule |
144 | # but instead _all depend on modules | 144 | # but instead _all depend on modules |
145 | PHONY += all | 145 | PHONY += all |
146 | ifeq ($(KBUILD_EXTMOD),) | 146 | ifeq ($(KBUILD_EXTMOD),) |
147 | _all: all | 147 | _all: all |
148 | else | 148 | else |
149 | _all: modules | 149 | _all: modules |
150 | endif | 150 | endif |
151 | 151 | ||
152 | srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) | 152 | srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) |
153 | objtree := $(CURDIR) | 153 | objtree := $(CURDIR) |
154 | src := $(srctree) | 154 | src := $(srctree) |
155 | obj := $(objtree) | 155 | obj := $(objtree) |
156 | 156 | ||
157 | VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) | 157 | VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) |
158 | 158 | ||
159 | export srctree objtree VPATH | 159 | export srctree objtree VPATH |
160 | 160 | ||
161 | 161 | ||
162 | # SUBARCH tells the usermode build what the underlying arch is. That is set | 162 | # SUBARCH tells the usermode build what the underlying arch is. That is set |
163 | # first, and if a usermode build is happening, the "ARCH=um" on the command | 163 | # first, and if a usermode build is happening, the "ARCH=um" on the command |
164 | # line overrides the setting of ARCH below. If a native build is happening, | 164 | # line overrides the setting of ARCH below. If a native build is happening, |
165 | # then ARCH is assigned, getting whatever value it gets normally, and | 165 | # then ARCH is assigned, getting whatever value it gets normally, and |
166 | # SUBARCH is subsequently ignored. | 166 | # SUBARCH is subsequently ignored. |
167 | 167 | ||
168 | SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ | 168 | SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ |
169 | -e s/arm.*/arm/ -e s/sa110/arm/ \ | 169 | -e s/arm.*/arm/ -e s/sa110/arm/ \ |
170 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ | 170 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ |
171 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ | 171 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ |
172 | -e s/sh[234].*/sh/ ) | 172 | -e s/sh[234].*/sh/ ) |
173 | 173 | ||
174 | # Cross compiling and selecting different set of gcc/bin-utils | 174 | # Cross compiling and selecting different set of gcc/bin-utils |
175 | # --------------------------------------------------------------------------- | 175 | # --------------------------------------------------------------------------- |
176 | # | 176 | # |
177 | # When performing cross compilation for other architectures ARCH shall be set | 177 | # When performing cross compilation for other architectures ARCH shall be set |
178 | # to the target architecture. (See arch/* for the possibilities). | 178 | # to the target architecture. (See arch/* for the possibilities). |
179 | # ARCH can be set during invocation of make: | 179 | # ARCH can be set during invocation of make: |
180 | # make ARCH=ia64 | 180 | # make ARCH=ia64 |
181 | # Another way is to have ARCH set in the environment. | 181 | # Another way is to have ARCH set in the environment. |
182 | # The default ARCH is the host where make is executed. | 182 | # The default ARCH is the host where make is executed. |
183 | 183 | ||
184 | # CROSS_COMPILE specify the prefix used for all executables used | 184 | # CROSS_COMPILE specify the prefix used for all executables used |
185 | # during compilation. Only gcc and related bin-utils executables | 185 | # during compilation. Only gcc and related bin-utils executables |
186 | # are prefixed with $(CROSS_COMPILE). | 186 | # are prefixed with $(CROSS_COMPILE). |
187 | # CROSS_COMPILE can be set on the command line | 187 | # CROSS_COMPILE can be set on the command line |
188 | # make CROSS_COMPILE=ia64-linux- | 188 | # make CROSS_COMPILE=ia64-linux- |
189 | # Alternatively CROSS_COMPILE can be set in the environment. | 189 | # Alternatively CROSS_COMPILE can be set in the environment. |
190 | # A third alternative is to store a setting in .config so that plain | 190 | # A third alternative is to store a setting in .config so that plain |
191 | # "make" in the configured kernel build directory always uses that. | 191 | # "make" in the configured kernel build directory always uses that. |
192 | # Default value for CROSS_COMPILE is not to prefix executables | 192 | # Default value for CROSS_COMPILE is not to prefix executables |
193 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile | 193 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile |
194 | export KBUILD_BUILDHOST := $(SUBARCH) | 194 | export KBUILD_BUILDHOST := $(SUBARCH) |
195 | ARCH ?= $(SUBARCH) | 195 | ARCH ?= $(SUBARCH) |
196 | CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) | 196 | CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) |
197 | 197 | ||
198 | # Architecture as present in compile.h | 198 | # Architecture as present in compile.h |
199 | UTS_MACHINE := $(ARCH) | 199 | UTS_MACHINE := $(ARCH) |
200 | SRCARCH := $(ARCH) | 200 | SRCARCH := $(ARCH) |
201 | 201 | ||
202 | # Additional ARCH settings for x86 | 202 | # Additional ARCH settings for x86 |
203 | ifeq ($(ARCH),i386) | 203 | ifeq ($(ARCH),i386) |
204 | SRCARCH := x86 | 204 | SRCARCH := x86 |
205 | endif | 205 | endif |
206 | ifeq ($(ARCH),x86_64) | 206 | ifeq ($(ARCH),x86_64) |
207 | SRCARCH := x86 | 207 | SRCARCH := x86 |
208 | endif | 208 | endif |
209 | 209 | ||
210 | # Additional ARCH settings for sparc | 210 | # Additional ARCH settings for sparc |
211 | ifeq ($(ARCH),sparc32) | 211 | ifeq ($(ARCH),sparc32) |
212 | SRCARCH := sparc | 212 | SRCARCH := sparc |
213 | endif | 213 | endif |
214 | ifeq ($(ARCH),sparc64) | 214 | ifeq ($(ARCH),sparc64) |
215 | SRCARCH := sparc | 215 | SRCARCH := sparc |
216 | endif | 216 | endif |
217 | 217 | ||
218 | # Additional ARCH settings for sh | 218 | # Additional ARCH settings for sh |
219 | ifeq ($(ARCH),sh64) | 219 | ifeq ($(ARCH),sh64) |
220 | SRCARCH := sh | 220 | SRCARCH := sh |
221 | endif | 221 | endif |
222 | 222 | ||
223 | # Additional ARCH settings for tile | 223 | # Additional ARCH settings for tile |
224 | ifeq ($(ARCH),tilepro) | 224 | ifeq ($(ARCH),tilepro) |
225 | SRCARCH := tile | 225 | SRCARCH := tile |
226 | endif | 226 | endif |
227 | ifeq ($(ARCH),tilegx) | 227 | ifeq ($(ARCH),tilegx) |
228 | SRCARCH := tile | 228 | SRCARCH := tile |
229 | endif | 229 | endif |
230 | 230 | ||
231 | # Where to locate arch specific headers | 231 | # Where to locate arch specific headers |
232 | hdr-arch := $(SRCARCH) | 232 | hdr-arch := $(SRCARCH) |
233 | 233 | ||
234 | ifeq ($(ARCH),m68knommu) | 234 | ifeq ($(ARCH),m68knommu) |
235 | hdr-arch := m68k | 235 | hdr-arch := m68k |
236 | endif | 236 | endif |
237 | 237 | ||
238 | KCONFIG_CONFIG ?= .config | 238 | KCONFIG_CONFIG ?= .config |
239 | export KCONFIG_CONFIG | 239 | export KCONFIG_CONFIG |
240 | 240 | ||
241 | # SHELL used by kbuild | 241 | # SHELL used by kbuild |
242 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ | 242 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ |
243 | else if [ -x /bin/bash ]; then echo /bin/bash; \ | 243 | else if [ -x /bin/bash ]; then echo /bin/bash; \ |
244 | else echo sh; fi ; fi) | 244 | else echo sh; fi ; fi) |
245 | 245 | ||
246 | HOSTCC = gcc | 246 | HOSTCC = gcc |
247 | HOSTCXX = g++ | 247 | HOSTCXX = g++ |
248 | HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer | 248 | HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer |
249 | HOSTCXXFLAGS = -O2 | 249 | HOSTCXXFLAGS = -O2 |
250 | 250 | ||
251 | # Decide whether to build built-in, modular, or both. | 251 | # Decide whether to build built-in, modular, or both. |
252 | # Normally, just do built-in. | 252 | # Normally, just do built-in. |
253 | 253 | ||
254 | KBUILD_MODULES := | 254 | KBUILD_MODULES := |
255 | KBUILD_BUILTIN := 1 | 255 | KBUILD_BUILTIN := 1 |
256 | 256 | ||
257 | # If we have only "make modules", don't compile built-in objects. | 257 | # If we have only "make modules", don't compile built-in objects. |
258 | # When we're building modules with modversions, we need to consider | 258 | # When we're building modules with modversions, we need to consider |
259 | # the built-in objects during the descend as well, in order to | 259 | # the built-in objects during the descend as well, in order to |
260 | # make sure the checksums are up to date before we record them. | 260 | # make sure the checksums are up to date before we record them. |
261 | 261 | ||
262 | ifeq ($(MAKECMDGOALS),modules) | 262 | ifeq ($(MAKECMDGOALS),modules) |
263 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) | 263 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) |
264 | endif | 264 | endif |
265 | 265 | ||
266 | # If we have "make <whatever> modules", compile modules | 266 | # If we have "make <whatever> modules", compile modules |
267 | # in addition to whatever we do anyway. | 267 | # in addition to whatever we do anyway. |
268 | # Just "make" or "make all" shall build modules as well | 268 | # Just "make" or "make all" shall build modules as well |
269 | 269 | ||
270 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) | 270 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) |
271 | KBUILD_MODULES := 1 | 271 | KBUILD_MODULES := 1 |
272 | endif | 272 | endif |
273 | 273 | ||
274 | ifeq ($(MAKECMDGOALS),) | 274 | ifeq ($(MAKECMDGOALS),) |
275 | KBUILD_MODULES := 1 | 275 | KBUILD_MODULES := 1 |
276 | endif | 276 | endif |
277 | 277 | ||
278 | export KBUILD_MODULES KBUILD_BUILTIN | 278 | export KBUILD_MODULES KBUILD_BUILTIN |
279 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD | 279 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD |
280 | 280 | ||
281 | # Beautify output | 281 | # Beautify output |
282 | # --------------------------------------------------------------------------- | 282 | # --------------------------------------------------------------------------- |
283 | # | 283 | # |
284 | # Normally, we echo the whole command before executing it. By making | 284 | # Normally, we echo the whole command before executing it. By making |
285 | # that echo $($(quiet)$(cmd)), we now have the possibility to set | 285 | # that echo $($(quiet)$(cmd)), we now have the possibility to set |
286 | # $(quiet) to choose other forms of output instead, e.g. | 286 | # $(quiet) to choose other forms of output instead, e.g. |
287 | # | 287 | # |
288 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ | 288 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ |
289 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< | 289 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< |
290 | # | 290 | # |
291 | # If $(quiet) is empty, the whole command will be printed. | 291 | # If $(quiet) is empty, the whole command will be printed. |
292 | # If it is set to "quiet_", only the short version will be printed. | 292 | # If it is set to "quiet_", only the short version will be printed. |
293 | # If it is set to "silent_", nothing will be printed at all, since | 293 | # If it is set to "silent_", nothing will be printed at all, since |
294 | # the variable $(silent_cmd_cc_o_c) doesn't exist. | 294 | # the variable $(silent_cmd_cc_o_c) doesn't exist. |
295 | # | 295 | # |
296 | # A simple variant is to prefix commands with $(Q) - that's useful | 296 | # A simple variant is to prefix commands with $(Q) - that's useful |
297 | # for commands that shall be hidden in non-verbose mode. | 297 | # for commands that shall be hidden in non-verbose mode. |
298 | # | 298 | # |
299 | # $(Q)ln $@ :< | 299 | # $(Q)ln $@ :< |
300 | # | 300 | # |
301 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. | 301 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. |
302 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. | 302 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. |
303 | 303 | ||
304 | ifeq ($(KBUILD_VERBOSE),1) | 304 | ifeq ($(KBUILD_VERBOSE),1) |
305 | quiet = | 305 | quiet = |
306 | Q = | 306 | Q = |
307 | else | 307 | else |
308 | quiet=quiet_ | 308 | quiet=quiet_ |
309 | Q = @ | 309 | Q = @ |
310 | endif | 310 | endif |
311 | 311 | ||
312 | # If the user is running make -s (silent mode), suppress echoing of | 312 | # If the user is running make -s (silent mode), suppress echoing of |
313 | # commands | 313 | # commands |
314 | 314 | ||
315 | ifneq ($(filter s% -s%,$(MAKEFLAGS)),) | 315 | ifneq ($(filter s% -s%,$(MAKEFLAGS)),) |
316 | quiet=silent_ | 316 | quiet=silent_ |
317 | endif | 317 | endif |
318 | 318 | ||
319 | export quiet Q KBUILD_VERBOSE | 319 | export quiet Q KBUILD_VERBOSE |
320 | 320 | ||
321 | 321 | ||
322 | # Look for make include files relative to root of kernel src | 322 | # Look for make include files relative to root of kernel src |
323 | MAKEFLAGS += --include-dir=$(srctree) | 323 | MAKEFLAGS += --include-dir=$(srctree) |
324 | 324 | ||
325 | # We need some generic definitions (do not try to remake the file). | 325 | # We need some generic definitions (do not try to remake the file). |
326 | $(srctree)/scripts/Kbuild.include: ; | 326 | $(srctree)/scripts/Kbuild.include: ; |
327 | include $(srctree)/scripts/Kbuild.include | 327 | include $(srctree)/scripts/Kbuild.include |
328 | 328 | ||
329 | # Make variables (CC, etc...) | 329 | # Make variables (CC, etc...) |
330 | 330 | ||
331 | AS = $(CROSS_COMPILE)as | 331 | AS = $(CROSS_COMPILE)as |
332 | LD = $(CROSS_COMPILE)ld | 332 | LD = $(CROSS_COMPILE)ld |
333 | CC = $(CROSS_COMPILE)gcc | 333 | CC = $(CROSS_COMPILE)gcc |
334 | CPP = $(CC) -E | 334 | CPP = $(CC) -E |
335 | AR = $(CROSS_COMPILE)ar | 335 | AR = $(CROSS_COMPILE)ar |
336 | NM = $(CROSS_COMPILE)nm | 336 | NM = $(CROSS_COMPILE)nm |
337 | STRIP = $(CROSS_COMPILE)strip | 337 | STRIP = $(CROSS_COMPILE)strip |
338 | OBJCOPY = $(CROSS_COMPILE)objcopy | 338 | OBJCOPY = $(CROSS_COMPILE)objcopy |
339 | OBJDUMP = $(CROSS_COMPILE)objdump | 339 | OBJDUMP = $(CROSS_COMPILE)objdump |
340 | AWK = awk | 340 | AWK = awk |
341 | GENKSYMS = scripts/genksyms/genksyms | 341 | GENKSYMS = scripts/genksyms/genksyms |
342 | INSTALLKERNEL := installkernel | 342 | INSTALLKERNEL := installkernel |
343 | DEPMOD = /sbin/depmod | 343 | DEPMOD = /sbin/depmod |
344 | KALLSYMS = scripts/kallsyms | 344 | KALLSYMS = scripts/kallsyms |
345 | PERL = perl | 345 | PERL = perl |
346 | CHECK = sparse | 346 | CHECK = sparse |
347 | 347 | ||
348 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ | 348 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ |
349 | -Wbitwise -Wno-return-void $(CF) | 349 | -Wbitwise -Wno-return-void $(CF) |
350 | CFLAGS_MODULE = | 350 | CFLAGS_MODULE = |
351 | AFLAGS_MODULE = | 351 | AFLAGS_MODULE = |
352 | LDFLAGS_MODULE = | 352 | LDFLAGS_MODULE = |
353 | CFLAGS_KERNEL = | 353 | CFLAGS_KERNEL = |
354 | AFLAGS_KERNEL = | 354 | AFLAGS_KERNEL = |
355 | CFLAGS_GCOV = -fprofile-arcs -ftest-coverage | 355 | CFLAGS_GCOV = -fprofile-arcs -ftest-coverage |
356 | 356 | ||
357 | 357 | ||
358 | # Use LINUXINCLUDE when you must reference the include/ directory. | 358 | # Use LINUXINCLUDE when you must reference the include/ directory. |
359 | # Needed to be compatible with the O= option | 359 | # Needed to be compatible with the O= option |
360 | LINUXINCLUDE := -I$(srctree)/arch/$(hdr-arch)/include \ | 360 | LINUXINCLUDE := -I$(srctree)/arch/$(hdr-arch)/include \ |
361 | -Iarch/$(hdr-arch)/include/generated -Iinclude \ | 361 | -Iarch/$(hdr-arch)/include/generated -Iinclude \ |
362 | $(if $(KBUILD_SRC), -I$(srctree)/include) \ | 362 | $(if $(KBUILD_SRC), -I$(srctree)/include) \ |
363 | -include $(srctree)/include/linux/kconfig.h | 363 | -include $(srctree)/include/linux/kconfig.h |
364 | 364 | ||
365 | KBUILD_CPPFLAGS := -D__KERNEL__ | 365 | KBUILD_CPPFLAGS := -D__KERNEL__ |
366 | 366 | ||
367 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ | 367 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ |
368 | -fno-strict-aliasing -fno-common \ | 368 | -fno-strict-aliasing -fno-common \ |
369 | -Werror-implicit-function-declaration \ | 369 | -Werror-implicit-function-declaration \ |
370 | -Wno-format-security \ | 370 | -Wno-format-security \ |
371 | -fno-delete-null-pointer-checks | 371 | -fno-delete-null-pointer-checks |
372 | KBUILD_AFLAGS_KERNEL := | 372 | KBUILD_AFLAGS_KERNEL := |
373 | KBUILD_CFLAGS_KERNEL := | 373 | KBUILD_CFLAGS_KERNEL := |
374 | KBUILD_AFLAGS := -D__ASSEMBLY__ | 374 | KBUILD_AFLAGS := -D__ASSEMBLY__ |
375 | KBUILD_AFLAGS_MODULE := -DMODULE | 375 | KBUILD_AFLAGS_MODULE := -DMODULE |
376 | KBUILD_CFLAGS_MODULE := -DMODULE | 376 | KBUILD_CFLAGS_MODULE := -DMODULE |
377 | KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds | 377 | KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds |
378 | 378 | ||
379 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) | 379 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) |
380 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) | 380 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) |
381 | KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) | 381 | KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) |
382 | 382 | ||
383 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION | 383 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION |
384 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC | 384 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC |
385 | export CPP AR NM STRIP OBJCOPY OBJDUMP | 385 | export CPP AR NM STRIP OBJCOPY OBJDUMP |
386 | export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE | 386 | export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE |
387 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS | 387 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS |
388 | 388 | ||
389 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS | 389 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS |
390 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV | 390 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV |
391 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE | 391 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE |
392 | export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE | 392 | export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE |
393 | export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL | 393 | export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL |
394 | export KBUILD_ARFLAGS | 394 | export KBUILD_ARFLAGS |
395 | 395 | ||
396 | # When compiling out-of-tree modules, put MODVERDIR in the module | 396 | # When compiling out-of-tree modules, put MODVERDIR in the module |
397 | # tree rather than in the kernel tree. The kernel tree might | 397 | # tree rather than in the kernel tree. The kernel tree might |
398 | # even be read-only. | 398 | # even be read-only. |
399 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions | 399 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions |
400 | 400 | ||
401 | # Files to ignore in find ... statements | 401 | # Files to ignore in find ... statements |
402 | 402 | ||
403 | RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o | 403 | RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o |
404 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git | 404 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git |
405 | 405 | ||
406 | # =========================================================================== | 406 | # =========================================================================== |
407 | # Rules shared between *config targets and build targets | 407 | # Rules shared between *config targets and build targets |
408 | 408 | ||
409 | # Basic helpers built in scripts/ | 409 | # Basic helpers built in scripts/ |
410 | PHONY += scripts_basic | 410 | PHONY += scripts_basic |
411 | scripts_basic: | 411 | scripts_basic: |
412 | $(Q)$(MAKE) $(build)=scripts/basic | 412 | $(Q)$(MAKE) $(build)=scripts/basic |
413 | $(Q)rm -f .tmp_quiet_recordmcount | 413 | $(Q)rm -f .tmp_quiet_recordmcount |
414 | 414 | ||
415 | # To avoid any implicit rule to kick in, define an empty command. | 415 | # To avoid any implicit rule to kick in, define an empty command. |
416 | scripts/basic/%: scripts_basic ; | 416 | scripts/basic/%: scripts_basic ; |
417 | 417 | ||
418 | PHONY += outputmakefile | 418 | PHONY += outputmakefile |
419 | # outputmakefile generates a Makefile in the output directory, if using a | 419 | # outputmakefile generates a Makefile in the output directory, if using a |
420 | # separate output directory. This allows convenient use of make in the | 420 | # separate output directory. This allows convenient use of make in the |
421 | # output directory. | 421 | # output directory. |
422 | outputmakefile: | 422 | outputmakefile: |
423 | ifneq ($(KBUILD_SRC),) | 423 | ifneq ($(KBUILD_SRC),) |
424 | $(Q)ln -fsn $(srctree) source | 424 | $(Q)ln -fsn $(srctree) source |
425 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ | 425 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ |
426 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) | 426 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) |
427 | endif | 427 | endif |
428 | 428 | ||
429 | # Support for using generic headers in asm-generic | 429 | # Support for using generic headers in asm-generic |
430 | PHONY += asm-generic | 430 | PHONY += asm-generic |
431 | asm-generic: | 431 | asm-generic: |
432 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ | 432 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ |
433 | obj=arch/$(SRCARCH)/include/generated/asm | 433 | obj=arch/$(SRCARCH)/include/generated/asm |
434 | 434 | ||
435 | # To make sure we do not include .config for any of the *config targets | 435 | # To make sure we do not include .config for any of the *config targets |
436 | # catch them early, and hand them over to scripts/kconfig/Makefile | 436 | # catch them early, and hand them over to scripts/kconfig/Makefile |
437 | # It is allowed to specify more targets when calling make, including | 437 | # It is allowed to specify more targets when calling make, including |
438 | # mixing *config targets and build targets. | 438 | # mixing *config targets and build targets. |
439 | # For example 'make oldconfig all'. | 439 | # For example 'make oldconfig all'. |
440 | # Detect when mixed targets is specified, and make a second invocation | 440 | # Detect when mixed targets is specified, and make a second invocation |
441 | # of make so .config is not included in this case either (for *config). | 441 | # of make so .config is not included in this case either (for *config). |
442 | 442 | ||
443 | no-dot-config-targets := clean mrproper distclean \ | 443 | no-dot-config-targets := clean mrproper distclean \ |
444 | cscope gtags TAGS tags help %docs check% coccicheck \ | 444 | cscope gtags TAGS tags help %docs check% coccicheck \ |
445 | include/linux/version.h headers_% archheaders \ | 445 | include/linux/version.h headers_% archheaders \ |
446 | kernelversion %src-pkg | 446 | kernelversion %src-pkg |
447 | 447 | ||
448 | config-targets := 0 | 448 | config-targets := 0 |
449 | mixed-targets := 0 | 449 | mixed-targets := 0 |
450 | dot-config := 1 | 450 | dot-config := 1 |
451 | 451 | ||
452 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) | 452 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) |
453 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) | 453 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) |
454 | dot-config := 0 | 454 | dot-config := 0 |
455 | endif | 455 | endif |
456 | endif | 456 | endif |
457 | 457 | ||
458 | ifeq ($(KBUILD_EXTMOD),) | 458 | ifeq ($(KBUILD_EXTMOD),) |
459 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) | 459 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) |
460 | config-targets := 1 | 460 | config-targets := 1 |
461 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) | 461 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) |
462 | mixed-targets := 1 | 462 | mixed-targets := 1 |
463 | endif | 463 | endif |
464 | endif | 464 | endif |
465 | endif | 465 | endif |
466 | 466 | ||
467 | ifeq ($(mixed-targets),1) | 467 | ifeq ($(mixed-targets),1) |
468 | # =========================================================================== | 468 | # =========================================================================== |
469 | # We're called with mixed targets (*config and build targets). | 469 | # We're called with mixed targets (*config and build targets). |
470 | # Handle them one by one. | 470 | # Handle them one by one. |
471 | 471 | ||
472 | %:: FORCE | 472 | %:: FORCE |
473 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ | 473 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ |
474 | 474 | ||
475 | else | 475 | else |
476 | ifeq ($(config-targets),1) | 476 | ifeq ($(config-targets),1) |
477 | # =========================================================================== | 477 | # =========================================================================== |
478 | # *config targets only - make sure prerequisites are updated, and descend | 478 | # *config targets only - make sure prerequisites are updated, and descend |
479 | # in scripts/kconfig to make the *config target | 479 | # in scripts/kconfig to make the *config target |
480 | 480 | ||
481 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. | 481 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. |
482 | # KBUILD_DEFCONFIG may point out an alternative default configuration | 482 | # KBUILD_DEFCONFIG may point out an alternative default configuration |
483 | # used for 'make defconfig' | 483 | # used for 'make defconfig' |
484 | include $(srctree)/arch/$(SRCARCH)/Makefile | 484 | include $(srctree)/arch/$(SRCARCH)/Makefile |
485 | export KBUILD_DEFCONFIG KBUILD_KCONFIG | 485 | export KBUILD_DEFCONFIG KBUILD_KCONFIG |
486 | 486 | ||
487 | config: scripts_basic outputmakefile FORCE | 487 | config: scripts_basic outputmakefile FORCE |
488 | $(Q)mkdir -p include/linux include/config | 488 | $(Q)mkdir -p include/linux include/config |
489 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 489 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
490 | 490 | ||
491 | %config: scripts_basic outputmakefile FORCE | 491 | %config: scripts_basic outputmakefile FORCE |
492 | $(Q)mkdir -p include/linux include/config | 492 | $(Q)mkdir -p include/linux include/config |
493 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 493 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
494 | 494 | ||
495 | else | 495 | else |
496 | # =========================================================================== | 496 | # =========================================================================== |
497 | # Build targets only - this includes vmlinux, arch specific targets, clean | 497 | # Build targets only - this includes vmlinux, arch specific targets, clean |
498 | # targets and others. In general all targets except *config targets. | 498 | # targets and others. In general all targets except *config targets. |
499 | 499 | ||
500 | ifeq ($(KBUILD_EXTMOD),) | 500 | ifeq ($(KBUILD_EXTMOD),) |
501 | # Additional helpers built in scripts/ | 501 | # Additional helpers built in scripts/ |
502 | # Carefully list dependencies so we do not try to build scripts twice | 502 | # Carefully list dependencies so we do not try to build scripts twice |
503 | # in parallel | 503 | # in parallel |
504 | PHONY += scripts | 504 | PHONY += scripts |
505 | scripts: scripts_basic include/config/auto.conf include/config/tristate.conf | 505 | scripts: scripts_basic include/config/auto.conf include/config/tristate.conf |
506 | $(Q)$(MAKE) $(build)=$(@) | 506 | $(Q)$(MAKE) $(build)=$(@) |
507 | 507 | ||
508 | # Objects we will link into vmlinux / subdirs we need to visit | 508 | # Objects we will link into vmlinux / subdirs we need to visit |
509 | init-y := init/ | 509 | init-y := init/ |
510 | drivers-y := drivers/ sound/ firmware/ | 510 | drivers-y := drivers/ sound/ firmware/ |
511 | net-y := net/ | 511 | net-y := net/ |
512 | libs-y := lib/ | 512 | libs-y := lib/ |
513 | core-y := usr/ | 513 | core-y := usr/ |
514 | endif # KBUILD_EXTMOD | 514 | endif # KBUILD_EXTMOD |
515 | 515 | ||
516 | ifeq ($(dot-config),1) | 516 | ifeq ($(dot-config),1) |
517 | # Read in config | 517 | # Read in config |
518 | -include include/config/auto.conf | 518 | -include include/config/auto.conf |
519 | 519 | ||
520 | ifeq ($(KBUILD_EXTMOD),) | 520 | ifeq ($(KBUILD_EXTMOD),) |
521 | # Read in dependencies to all Kconfig* files, make sure to run | 521 | # Read in dependencies to all Kconfig* files, make sure to run |
522 | # oldconfig if changes are detected. | 522 | # oldconfig if changes are detected. |
523 | -include include/config/auto.conf.cmd | 523 | -include include/config/auto.conf.cmd |
524 | 524 | ||
525 | # To avoid any implicit rule to kick in, define an empty command | 525 | # To avoid any implicit rule to kick in, define an empty command |
526 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; | 526 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; |
527 | 527 | ||
528 | # If .config is newer than include/config/auto.conf, someone tinkered | 528 | # If .config is newer than include/config/auto.conf, someone tinkered |
529 | # with it and forgot to run make oldconfig. | 529 | # with it and forgot to run make oldconfig. |
530 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so | 530 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so |
531 | # we execute the config step to be sure to catch updated Kconfig files | 531 | # we execute the config step to be sure to catch updated Kconfig files |
532 | include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd | 532 | include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd |
533 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig | 533 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig |
534 | else | 534 | else |
535 | # external modules needs include/generated/autoconf.h and include/config/auto.conf | 535 | # external modules needs include/generated/autoconf.h and include/config/auto.conf |
536 | # but do not care if they are up-to-date. Use auto.conf to trigger the test | 536 | # but do not care if they are up-to-date. Use auto.conf to trigger the test |
537 | PHONY += include/config/auto.conf | 537 | PHONY += include/config/auto.conf |
538 | 538 | ||
539 | include/config/auto.conf: | 539 | include/config/auto.conf: |
540 | $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ | 540 | $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ |
541 | echo; \ | 541 | echo; \ |
542 | echo " ERROR: Kernel configuration is invalid."; \ | 542 | echo " ERROR: Kernel configuration is invalid."; \ |
543 | echo " include/generated/autoconf.h or $@ are missing.";\ | 543 | echo " include/generated/autoconf.h or $@ are missing.";\ |
544 | echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ | 544 | echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ |
545 | echo; \ | 545 | echo; \ |
546 | /bin/false) | 546 | /bin/false) |
547 | 547 | ||
548 | endif # KBUILD_EXTMOD | 548 | endif # KBUILD_EXTMOD |
549 | 549 | ||
550 | else | 550 | else |
551 | # Dummy target needed, because used as prerequisite | 551 | # Dummy target needed, because used as prerequisite |
552 | include/config/auto.conf: ; | 552 | include/config/auto.conf: ; |
553 | endif # $(dot-config) | 553 | endif # $(dot-config) |
554 | 554 | ||
555 | # The all: target is the default when no target is given on the | 555 | # The all: target is the default when no target is given on the |
556 | # command line. | 556 | # command line. |
557 | # This allow a user to issue only 'make' to build a kernel including modules | 557 | # This allow a user to issue only 'make' to build a kernel including modules |
558 | # Defaults to vmlinux, but the arch makefile usually adds further targets | 558 | # Defaults to vmlinux, but the arch makefile usually adds further targets |
559 | all: vmlinux | 559 | all: vmlinux |
560 | 560 | ||
561 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE | 561 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE |
562 | KBUILD_CFLAGS += -Os | 562 | KBUILD_CFLAGS += -Os |
563 | else | 563 | else |
564 | KBUILD_CFLAGS += -O2 | 564 | KBUILD_CFLAGS += -O2 |
565 | endif | 565 | endif |
566 | 566 | ||
567 | include $(srctree)/arch/$(SRCARCH)/Makefile | 567 | include $(srctree)/arch/$(SRCARCH)/Makefile |
568 | 568 | ||
569 | ifneq ($(CONFIG_FRAME_WARN),0) | 569 | ifneq ($(CONFIG_FRAME_WARN),0) |
570 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) | 570 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) |
571 | endif | 571 | endif |
572 | 572 | ||
573 | # Force gcc to behave correct even for buggy distributions | 573 | # Force gcc to behave correct even for buggy distributions |
574 | ifndef CONFIG_CC_STACKPROTECTOR | 574 | ifndef CONFIG_CC_STACKPROTECTOR |
575 | KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) | 575 | KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) |
576 | endif | 576 | endif |
577 | 577 | ||
578 | # This warning generated too much noise in a regular build. | 578 | # This warning generated too much noise in a regular build. |
579 | # Use make W=1 to enable this warning (see scripts/Makefile.build) | 579 | # Use make W=1 to enable this warning (see scripts/Makefile.build) |
580 | KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) | 580 | KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) |
581 | 581 | ||
582 | ifdef CONFIG_FRAME_POINTER | 582 | ifdef CONFIG_FRAME_POINTER |
583 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls | 583 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls |
584 | else | 584 | else |
585 | # Some targets (ARM with Thumb2, for example), can't be built with frame | 585 | # Some targets (ARM with Thumb2, for example), can't be built with frame |
586 | # pointers. For those, we don't have FUNCTION_TRACER automatically | 586 | # pointers. For those, we don't have FUNCTION_TRACER automatically |
587 | # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is | 587 | # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is |
588 | # incompatible with -fomit-frame-pointer with current GCC, so we don't use | 588 | # incompatible with -fomit-frame-pointer with current GCC, so we don't use |
589 | # -fomit-frame-pointer with FUNCTION_TRACER. | 589 | # -fomit-frame-pointer with FUNCTION_TRACER. |
590 | ifndef CONFIG_FUNCTION_TRACER | 590 | ifndef CONFIG_FUNCTION_TRACER |
591 | KBUILD_CFLAGS += -fomit-frame-pointer | 591 | KBUILD_CFLAGS += -fomit-frame-pointer |
592 | endif | 592 | endif |
593 | endif | 593 | endif |
594 | 594 | ||
595 | ifdef CONFIG_DEBUG_INFO | 595 | ifdef CONFIG_DEBUG_INFO |
596 | KBUILD_CFLAGS += -g | 596 | KBUILD_CFLAGS += -g |
597 | KBUILD_AFLAGS += -gdwarf-2 | 597 | KBUILD_AFLAGS += -gdwarf-2 |
598 | endif | 598 | endif |
599 | 599 | ||
600 | ifdef CONFIG_DEBUG_INFO_REDUCED | 600 | ifdef CONFIG_DEBUG_INFO_REDUCED |
601 | KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) | 601 | KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) |
602 | endif | 602 | endif |
603 | 603 | ||
604 | ifdef CONFIG_FUNCTION_TRACER | 604 | ifdef CONFIG_FUNCTION_TRACER |
605 | KBUILD_CFLAGS += -pg | 605 | KBUILD_CFLAGS += -pg |
606 | ifdef CONFIG_DYNAMIC_FTRACE | 606 | ifdef CONFIG_DYNAMIC_FTRACE |
607 | ifdef CONFIG_HAVE_C_RECORDMCOUNT | 607 | ifdef CONFIG_HAVE_C_RECORDMCOUNT |
608 | BUILD_C_RECORDMCOUNT := y | 608 | BUILD_C_RECORDMCOUNT := y |
609 | export BUILD_C_RECORDMCOUNT | 609 | export BUILD_C_RECORDMCOUNT |
610 | endif | 610 | endif |
611 | endif | 611 | endif |
612 | endif | 612 | endif |
613 | 613 | ||
614 | # We trigger additional mismatches with less inlining | 614 | # We trigger additional mismatches with less inlining |
615 | ifdef CONFIG_DEBUG_SECTION_MISMATCH | 615 | ifdef CONFIG_DEBUG_SECTION_MISMATCH |
616 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) | 616 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) |
617 | endif | 617 | endif |
618 | 618 | ||
619 | # arch Makefile may override CC so keep this after arch Makefile is included | 619 | # arch Makefile may override CC so keep this after arch Makefile is included |
620 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) | 620 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) |
621 | CHECKFLAGS += $(NOSTDINC_FLAGS) | 621 | CHECKFLAGS += $(NOSTDINC_FLAGS) |
622 | 622 | ||
623 | # warn about C99 declaration after statement | 623 | # warn about C99 declaration after statement |
624 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) | 624 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) |
625 | 625 | ||
626 | # disable pointer signed / unsigned warnings in gcc 4.0 | 626 | # disable pointer signed / unsigned warnings in gcc 4.0 |
627 | KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign) | 627 | KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign) |
628 | 628 | ||
629 | # disable invalid "can't wrap" optimizations for signed / pointers | 629 | # disable invalid "can't wrap" optimizations for signed / pointers |
630 | KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) | 630 | KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) |
631 | 631 | ||
632 | # conserve stack if available | 632 | # conserve stack if available |
633 | KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) | 633 | KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) |
634 | 634 | ||
635 | # use the deterministic mode of AR if available | 635 | # use the deterministic mode of AR if available |
636 | KBUILD_ARFLAGS := $(call ar-option,D) | 636 | KBUILD_ARFLAGS := $(call ar-option,D) |
637 | 637 | ||
638 | # check for 'asm goto' | 638 | # check for 'asm goto' |
639 | ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y) | 639 | ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y) |
640 | KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO | 640 | KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO |
641 | endif | 641 | endif |
642 | 642 | ||
643 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments | 643 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments |
644 | # But warn user when we do so | 644 | # But warn user when we do so |
645 | warn-assign = \ | 645 | warn-assign = \ |
646 | $(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)") | 646 | $(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)") |
647 | 647 | ||
648 | ifneq ($(KCPPFLAGS),) | 648 | ifneq ($(KCPPFLAGS),) |
649 | $(call warn-assign,CPPFLAGS) | 649 | $(call warn-assign,CPPFLAGS) |
650 | KBUILD_CPPFLAGS += $(KCPPFLAGS) | 650 | KBUILD_CPPFLAGS += $(KCPPFLAGS) |
651 | endif | 651 | endif |
652 | ifneq ($(KAFLAGS),) | 652 | ifneq ($(KAFLAGS),) |
653 | $(call warn-assign,AFLAGS) | 653 | $(call warn-assign,AFLAGS) |
654 | KBUILD_AFLAGS += $(KAFLAGS) | 654 | KBUILD_AFLAGS += $(KAFLAGS) |
655 | endif | 655 | endif |
656 | ifneq ($(KCFLAGS),) | 656 | ifneq ($(KCFLAGS),) |
657 | $(call warn-assign,CFLAGS) | 657 | $(call warn-assign,CFLAGS) |
658 | KBUILD_CFLAGS += $(KCFLAGS) | 658 | KBUILD_CFLAGS += $(KCFLAGS) |
659 | endif | 659 | endif |
660 | 660 | ||
661 | # Use --build-id when available. | 661 | # Use --build-id when available. |
662 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ | 662 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ |
663 | $(call cc-ldoption, -Wl$(comma)--build-id,)) | 663 | $(call cc-ldoption, -Wl$(comma)--build-id,)) |
664 | KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) | 664 | KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) |
665 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) | 665 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) |
666 | 666 | ||
667 | ifeq ($(CONFIG_STRIP_ASM_SYMS),y) | 667 | ifeq ($(CONFIG_STRIP_ASM_SYMS),y) |
668 | LDFLAGS_vmlinux += $(call ld-option, -X,) | 668 | LDFLAGS_vmlinux += $(call ld-option, -X,) |
669 | endif | 669 | endif |
670 | 670 | ||
671 | # Default kernel image to build when no specific target is given. | 671 | # Default kernel image to build when no specific target is given. |
672 | # KBUILD_IMAGE may be overruled on the command line or | 672 | # KBUILD_IMAGE may be overruled on the command line or |
673 | # set in the environment | 673 | # set in the environment |
674 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over | 674 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over |
675 | # this default value | 675 | # this default value |
676 | export KBUILD_IMAGE ?= vmlinux | 676 | export KBUILD_IMAGE ?= vmlinux |
677 | 677 | ||
678 | # | 678 | # |
679 | # INSTALL_PATH specifies where to place the updated kernel and system map | 679 | # INSTALL_PATH specifies where to place the updated kernel and system map |
680 | # images. Default is /boot, but you can set it to other values | 680 | # images. Default is /boot, but you can set it to other values |
681 | export INSTALL_PATH ?= /boot | 681 | export INSTALL_PATH ?= /boot |
682 | 682 | ||
683 | # | 683 | # |
684 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory | 684 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory |
685 | # relocations required by build roots. This is not defined in the | 685 | # relocations required by build roots. This is not defined in the |
686 | # makefile but the argument can be passed to make if needed. | 686 | # makefile but the argument can be passed to make if needed. |
687 | # | 687 | # |
688 | 688 | ||
689 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) | 689 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
690 | export MODLIB | 690 | export MODLIB |
691 | 691 | ||
692 | # | 692 | # |
693 | # INSTALL_MOD_STRIP, if defined, will cause modules to be | 693 | # INSTALL_MOD_STRIP, if defined, will cause modules to be |
694 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then | 694 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then |
695 | # the default option --strip-debug will be used. Otherwise, | 695 | # the default option --strip-debug will be used. Otherwise, |
696 | # INSTALL_MOD_STRIP value will be used as the options to the strip command. | 696 | # INSTALL_MOD_STRIP value will be used as the options to the strip command. |
697 | 697 | ||
698 | ifdef INSTALL_MOD_STRIP | 698 | ifdef INSTALL_MOD_STRIP |
699 | ifeq ($(INSTALL_MOD_STRIP),1) | 699 | ifeq ($(INSTALL_MOD_STRIP),1) |
700 | mod_strip_cmd = $(STRIP) --strip-debug | 700 | mod_strip_cmd = $(STRIP) --strip-debug |
701 | else | 701 | else |
702 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) | 702 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) |
703 | endif # INSTALL_MOD_STRIP=1 | 703 | endif # INSTALL_MOD_STRIP=1 |
704 | else | 704 | else |
705 | mod_strip_cmd = true | 705 | mod_strip_cmd = true |
706 | endif # INSTALL_MOD_STRIP | 706 | endif # INSTALL_MOD_STRIP |
707 | export mod_strip_cmd | 707 | export mod_strip_cmd |
708 | 708 | ||
709 | 709 | ||
710 | ifeq ($(KBUILD_EXTMOD),) | 710 | ifeq ($(KBUILD_EXTMOD),) |
711 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ | 711 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ |
712 | 712 | ||
713 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ | 713 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ |
714 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ | 714 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ |
715 | $(net-y) $(net-m) $(libs-y) $(libs-m))) | 715 | $(net-y) $(net-m) $(libs-y) $(libs-m))) |
716 | 716 | ||
717 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ | 717 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ |
718 | $(init-n) $(init-) \ | 718 | $(init-n) $(init-) \ |
719 | $(core-n) $(core-) $(drivers-n) $(drivers-) \ | 719 | $(core-n) $(core-) $(drivers-n) $(drivers-) \ |
720 | $(net-n) $(net-) $(libs-n) $(libs-)))) | 720 | $(net-n) $(net-) $(libs-n) $(libs-)))) |
721 | 721 | ||
722 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) | 722 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) |
723 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) | 723 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) |
724 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) | 724 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) |
725 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) | 725 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) |
726 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) | 726 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) |
727 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) | 727 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) |
728 | libs-y := $(libs-y1) $(libs-y2) | 728 | libs-y := $(libs-y1) $(libs-y2) |
729 | 729 | ||
730 | # Build vmlinux | 730 | # Build vmlinux |
731 | # --------------------------------------------------------------------------- | 731 | # --------------------------------------------------------------------------- |
732 | # vmlinux is built from the objects selected by $(vmlinux-init) and | 732 | # vmlinux is built from the objects selected by $(vmlinux-init) and |
733 | # $(vmlinux-main). Most are built-in.o files from top-level directories | 733 | # $(vmlinux-main). Most are built-in.o files from top-level directories |
734 | # in the kernel tree, others are specified in arch/$(ARCH)/Makefile. | 734 | # in the kernel tree, others are specified in arch/$(ARCH)/Makefile. |
735 | # Ordering when linking is important, and $(vmlinux-init) must be first. | 735 | # Ordering when linking is important, and $(vmlinux-init) must be first. |
736 | # | 736 | # |
737 | # vmlinux | 737 | # vmlinux |
738 | # ^ | 738 | # ^ |
739 | # | | 739 | # | |
740 | # +-< $(vmlinux-init) | 740 | # +-< $(vmlinux-init) |
741 | # | +--< init/version.o + more | 741 | # | +--< init/version.o + more |
742 | # | | 742 | # | |
743 | # +--< $(vmlinux-main) | 743 | # +--< $(vmlinux-main) |
744 | # | +--< driver/built-in.o mm/built-in.o + more | 744 | # | +--< driver/built-in.o mm/built-in.o + more |
745 | # | | 745 | # | |
746 | # +-< kallsyms.o (see description in CONFIG_KALLSYMS section) | 746 | # +-< kallsyms.o (see description in CONFIG_KALLSYMS section) |
747 | # | 747 | # |
748 | # vmlinux version (uname -v) cannot be updated during normal | 748 | # vmlinux version (uname -v) cannot be updated during normal |
749 | # descending-into-subdirs phase since we do not yet know if we need to | 749 | # descending-into-subdirs phase since we do not yet know if we need to |
750 | # update vmlinux. | 750 | # update vmlinux. |
751 | # Therefore this step is delayed until just before final link of vmlinux - | 751 | # Therefore this step is delayed until just before final link of vmlinux - |
752 | # except in the kallsyms case where it is done just before adding the | 752 | # except in the kallsyms case where it is done just before adding the |
753 | # symbols to the kernel. | 753 | # symbols to the kernel. |
754 | # | 754 | # |
755 | # System.map is generated to document addresses of all kernel symbols | 755 | # System.map is generated to document addresses of all kernel symbols |
756 | 756 | ||
757 | vmlinux-init := $(head-y) $(init-y) | 757 | vmlinux-init := $(head-y) $(init-y) |
758 | vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y) | 758 | vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y) |
759 | vmlinux-all := $(vmlinux-init) $(vmlinux-main) | 759 | vmlinux-all := $(vmlinux-init) $(vmlinux-main) |
760 | vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds | 760 | vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds |
761 | export KBUILD_VMLINUX_OBJS := $(vmlinux-all) | 761 | export KBUILD_VMLINUX_OBJS := $(vmlinux-all) |
762 | 762 | ||
763 | # Rule to link vmlinux - also used during CONFIG_KALLSYMS | 763 | # Rule to link vmlinux - also used during CONFIG_KALLSYMS |
764 | # May be overridden by arch/$(ARCH)/Makefile | 764 | # May be overridden by arch/$(ARCH)/Makefile |
765 | quiet_cmd_vmlinux__ ?= LD $@ | 765 | quiet_cmd_vmlinux__ ?= LD $@ |
766 | cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ | 766 | cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ |
767 | -T $(vmlinux-lds) $(vmlinux-init) \ | 767 | -T $(vmlinux-lds) $(vmlinux-init) \ |
768 | --start-group $(vmlinux-main) --end-group \ | 768 | --start-group $(vmlinux-main) --end-group \ |
769 | $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^) | 769 | $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^) |
770 | 770 | ||
771 | # Generate new vmlinux version | 771 | # Generate new vmlinux version |
772 | quiet_cmd_vmlinux_version = GEN .version | 772 | quiet_cmd_vmlinux_version = GEN .version |
773 | cmd_vmlinux_version = set -e; \ | 773 | cmd_vmlinux_version = set -e; \ |
774 | if [ ! -r .version ]; then \ | 774 | if [ ! -r .version ]; then \ |
775 | rm -f .version; \ | 775 | rm -f .version; \ |
776 | echo 1 >.version; \ | 776 | echo 1 >.version; \ |
777 | else \ | 777 | else \ |
778 | mv .version .old_version; \ | 778 | mv .version .old_version; \ |
779 | expr 0$$(cat .old_version) + 1 >.version; \ | 779 | expr 0$$(cat .old_version) + 1 >.version; \ |
780 | fi; \ | 780 | fi; \ |
781 | $(MAKE) $(build)=init | 781 | $(MAKE) $(build)=init |
782 | 782 | ||
783 | # Generate System.map | 783 | # Generate System.map |
784 | quiet_cmd_sysmap = SYSMAP | 784 | quiet_cmd_sysmap = SYSMAP |
785 | cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap | 785 | cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap |
786 | 786 | ||
787 | # Link of vmlinux | 787 | # Link of vmlinux |
788 | # If CONFIG_KALLSYMS is set .version is already updated | 788 | # If CONFIG_KALLSYMS is set .version is already updated |
789 | # Generate System.map and verify that the content is consistent | 789 | # Generate System.map and verify that the content is consistent |
790 | # Use + in front of the vmlinux_version rule to silent warning with make -j2 | 790 | # Use + in front of the vmlinux_version rule to silent warning with make -j2 |
791 | # First command is ':' to allow us to use + in front of the rule | 791 | # First command is ':' to allow us to use + in front of the rule |
792 | define rule_vmlinux__ | 792 | define rule_vmlinux__ |
793 | : | 793 | : |
794 | $(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) | 794 | $(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) |
795 | 795 | ||
796 | $(call cmd,vmlinux__) | 796 | $(call cmd,vmlinux__) |
797 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd | 797 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd |
798 | 798 | ||
799 | $(Q)$(if $($(quiet)cmd_sysmap), \ | 799 | $(Q)$(if $($(quiet)cmd_sysmap), \ |
800 | echo ' $($(quiet)cmd_sysmap) System.map' &&) \ | 800 | echo ' $($(quiet)cmd_sysmap) System.map' &&) \ |
801 | $(cmd_sysmap) $@ System.map; \ | 801 | $(cmd_sysmap) $@ System.map; \ |
802 | if [ $$? -ne 0 ]; then \ | 802 | if [ $$? -ne 0 ]; then \ |
803 | rm -f $@; \ | 803 | rm -f $@; \ |
804 | /bin/false; \ | 804 | /bin/false; \ |
805 | fi; | 805 | fi; |
806 | $(verify_kallsyms) | 806 | $(verify_kallsyms) |
807 | endef | 807 | endef |
808 | 808 | ||
809 | 809 | ||
810 | ifdef CONFIG_KALLSYMS | 810 | ifdef CONFIG_KALLSYMS |
811 | # Generate section listing all symbols and add it into vmlinux $(kallsyms.o) | 811 | # Generate section listing all symbols and add it into vmlinux $(kallsyms.o) |
812 | # It's a three stage process: | 812 | # It's a three stage process: |
813 | # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is | 813 | # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is |
814 | # empty | 814 | # empty |
815 | # Running kallsyms on that gives us .tmp_kallsyms1.o with | 815 | # Running kallsyms on that gives us .tmp_kallsyms1.o with |
816 | # the right size - vmlinux version (uname -v) is updated during this step | 816 | # the right size - vmlinux version (uname -v) is updated during this step |
817 | # o .tmp_vmlinux2 now has a __kallsyms section of the right size, | 817 | # o .tmp_vmlinux2 now has a __kallsyms section of the right size, |
818 | # but due to the added section, some addresses have shifted. | 818 | # but due to the added section, some addresses have shifted. |
819 | # From here, we generate a correct .tmp_kallsyms2.o | 819 | # From here, we generate a correct .tmp_kallsyms2.o |
820 | # o The correct .tmp_kallsyms2.o is linked into the final vmlinux. | 820 | # o The correct .tmp_kallsyms2.o is linked into the final vmlinux. |
821 | # o Verify that the System.map from vmlinux matches the map from | 821 | # o Verify that the System.map from vmlinux matches the map from |
822 | # .tmp_vmlinux2, just in case we did not generate kallsyms correctly. | 822 | # .tmp_vmlinux2, just in case we did not generate kallsyms correctly. |
823 | # o If 'make KALLSYMS_EXTRA_PASS=1" was used, do an extra pass using | 823 | # o If 'make KALLSYMS_EXTRA_PASS=1" was used, do an extra pass using |
824 | # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a | 824 | # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a |
825 | # temporary bypass to allow the kernel to be built while the | 825 | # temporary bypass to allow the kernel to be built while the |
826 | # maintainers work out what went wrong with kallsyms. | 826 | # maintainers work out what went wrong with kallsyms. |
827 | 827 | ||
828 | last_kallsyms := 2 | 828 | last_kallsyms := 2 |
829 | 829 | ||
830 | ifdef KALLSYMS_EXTRA_PASS | 830 | ifdef KALLSYMS_EXTRA_PASS |
831 | ifneq ($(KALLSYMS_EXTRA_PASS),0) | 831 | ifneq ($(KALLSYMS_EXTRA_PASS),0) |
832 | last_kallsyms := 3 | 832 | last_kallsyms := 3 |
833 | endif | 833 | endif |
834 | endif | 834 | endif |
835 | 835 | ||
836 | kallsyms.o := .tmp_kallsyms$(last_kallsyms).o | 836 | kallsyms.o := .tmp_kallsyms$(last_kallsyms).o |
837 | 837 | ||
838 | define verify_kallsyms | 838 | define verify_kallsyms |
839 | $(Q)$(if $($(quiet)cmd_sysmap), \ | 839 | $(Q)$(if $($(quiet)cmd_sysmap), \ |
840 | echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ | 840 | echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ |
841 | $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map | 841 | $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map |
842 | $(Q)cmp -s System.map .tmp_System.map || \ | 842 | $(Q)cmp -s System.map .tmp_System.map || \ |
843 | (echo Inconsistent kallsyms data; \ | 843 | (echo Inconsistent kallsyms data; \ |
844 | echo This is a bug - please report about it; \ | 844 | echo This is a bug - please report about it; \ |
845 | echo Try "make KALLSYMS_EXTRA_PASS=1" as a workaround; \ | 845 | echo Try "make KALLSYMS_EXTRA_PASS=1" as a workaround; \ |
846 | rm .tmp_kallsyms* ; /bin/false ) | 846 | rm .tmp_kallsyms* ; /bin/false ) |
847 | endef | 847 | endef |
848 | 848 | ||
849 | # Update vmlinux version before link | 849 | # Update vmlinux version before link |
850 | # Use + in front of this rule to silent warning about make -j1 | 850 | # Use + in front of this rule to silent warning about make -j1 |
851 | # First command is ':' to allow us to use + in front of this rule | 851 | # First command is ':' to allow us to use + in front of this rule |
852 | cmd_ksym_ld = $(cmd_vmlinux__) | 852 | cmd_ksym_ld = $(cmd_vmlinux__) |
853 | define rule_ksym_ld | 853 | define rule_ksym_ld |
854 | : | 854 | : |
855 | +$(call cmd,vmlinux_version) | 855 | +$(call cmd,vmlinux_version) |
856 | $(call cmd,vmlinux__) | 856 | $(call cmd,vmlinux__) |
857 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd | 857 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd |
858 | endef | 858 | endef |
859 | 859 | ||
860 | # Generate .S file with all kernel symbols | 860 | # Generate .S file with all kernel symbols |
861 | quiet_cmd_kallsyms = KSYM $@ | 861 | quiet_cmd_kallsyms = KSYM $@ |
862 | cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \ | 862 | cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \ |
863 | $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@ | 863 | $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@ |
864 | 864 | ||
865 | .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE | 865 | .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE |
866 | $(call if_changed_dep,as_o_S) | 866 | $(call if_changed_dep,as_o_S) |
867 | 867 | ||
868 | .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS) | 868 | .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS) |
869 | $(call cmd,kallsyms) | 869 | $(call cmd,kallsyms) |
870 | 870 | ||
871 | # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version | 871 | # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version |
872 | .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE | 872 | .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE |
873 | $(call if_changed_rule,ksym_ld) | 873 | $(call if_changed_rule,ksym_ld) |
874 | 874 | ||
875 | .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE | 875 | .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE |
876 | $(call if_changed,vmlinux__) | 876 | $(call if_changed,vmlinux__) |
877 | 877 | ||
878 | .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE | 878 | .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE |
879 | $(call if_changed,vmlinux__) | 879 | $(call if_changed,vmlinux__) |
880 | 880 | ||
881 | # Needs to visit scripts/ before $(KALLSYMS) can be used. | 881 | # Needs to visit scripts/ before $(KALLSYMS) can be used. |
882 | $(KALLSYMS): scripts ; | 882 | $(KALLSYMS): scripts ; |
883 | 883 | ||
884 | # Generate some data for debugging strange kallsyms problems | 884 | # Generate some data for debugging strange kallsyms problems |
885 | debug_kallsyms: .tmp_map$(last_kallsyms) | 885 | debug_kallsyms: .tmp_map$(last_kallsyms) |
886 | 886 | ||
887 | .tmp_map%: .tmp_vmlinux% FORCE | 887 | .tmp_map%: .tmp_vmlinux% FORCE |
888 | ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@ | 888 | ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@ |
889 | 889 | ||
890 | .tmp_map3: .tmp_map2 | 890 | .tmp_map3: .tmp_map2 |
891 | 891 | ||
892 | .tmp_map2: .tmp_map1 | 892 | .tmp_map2: .tmp_map1 |
893 | 893 | ||
894 | endif # ifdef CONFIG_KALLSYMS | 894 | endif # ifdef CONFIG_KALLSYMS |
895 | 895 | ||
896 | # Do modpost on a prelinked vmlinux. The finally linked vmlinux has | 896 | # Do modpost on a prelinked vmlinux. The finally linked vmlinux has |
897 | # relevant sections renamed as per the linker script. | 897 | # relevant sections renamed as per the linker script. |
898 | quiet_cmd_vmlinux-modpost = LD $@ | 898 | quiet_cmd_vmlinux-modpost = LD $@ |
899 | cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \ | 899 | cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \ |
900 | $(vmlinux-init) --start-group $(vmlinux-main) --end-group \ | 900 | $(vmlinux-init) --start-group $(vmlinux-main) --end-group \ |
901 | $(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^) | 901 | $(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^) |
902 | define rule_vmlinux-modpost | 902 | define rule_vmlinux-modpost |
903 | : | 903 | : |
904 | +$(call cmd,vmlinux-modpost) | 904 | +$(call cmd,vmlinux-modpost) |
905 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@ | 905 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@ |
906 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd | 906 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd |
907 | endef | 907 | endef |
908 | 908 | ||
909 | # vmlinux image - including updated kernel symbols | 909 | # vmlinux image - including updated kernel symbols |
910 | vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE | 910 | vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE |
911 | ifdef CONFIG_HEADERS_CHECK | 911 | ifdef CONFIG_HEADERS_CHECK |
912 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check | 912 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check |
913 | endif | 913 | endif |
914 | ifdef CONFIG_SAMPLES | 914 | ifdef CONFIG_SAMPLES |
915 | $(Q)$(MAKE) $(build)=samples | 915 | $(Q)$(MAKE) $(build)=samples |
916 | endif | 916 | endif |
917 | ifdef CONFIG_BUILD_DOCSRC | 917 | ifdef CONFIG_BUILD_DOCSRC |
918 | $(Q)$(MAKE) $(build)=Documentation | 918 | $(Q)$(MAKE) $(build)=Documentation |
919 | endif | 919 | endif |
920 | $(call vmlinux-modpost) | 920 | $(call vmlinux-modpost) |
921 | $(call if_changed_rule,vmlinux__) | 921 | $(call if_changed_rule,vmlinux__) |
922 | $(Q)rm -f .old_version | 922 | $(Q)rm -f .old_version |
923 | 923 | ||
924 | # build vmlinux.o first to catch section mismatch errors early | 924 | # build vmlinux.o first to catch section mismatch errors early |
925 | ifdef CONFIG_KALLSYMS | 925 | ifdef CONFIG_KALLSYMS |
926 | .tmp_vmlinux1: vmlinux.o | 926 | .tmp_vmlinux1: vmlinux.o |
927 | endif | 927 | endif |
928 | 928 | ||
929 | modpost-init := $(filter-out init/built-in.o, $(vmlinux-init)) | 929 | modpost-init := $(filter-out init/built-in.o, $(vmlinux-init)) |
930 | vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE | 930 | vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE |
931 | $(call if_changed_rule,vmlinux-modpost) | 931 | $(call if_changed_rule,vmlinux-modpost) |
932 | 932 | ||
933 | # The actual objects are generated when descending, | 933 | # The actual objects are generated when descending, |
934 | # make sure no implicit rule kicks in | 934 | # make sure no implicit rule kicks in |
935 | $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; | 935 | $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; |
936 | 936 | ||
937 | # Handle descending into subdirectories listed in $(vmlinux-dirs) | 937 | # Handle descending into subdirectories listed in $(vmlinux-dirs) |
938 | # Preset locale variables to speed up the build process. Limit locale | 938 | # Preset locale variables to speed up the build process. Limit locale |
939 | # tweaks to this spot to avoid wrong language settings when running | 939 | # tweaks to this spot to avoid wrong language settings when running |
940 | # make menuconfig etc. | 940 | # make menuconfig etc. |
941 | # Error messages still appears in the original language | 941 | # Error messages still appears in the original language |
942 | 942 | ||
943 | PHONY += $(vmlinux-dirs) | 943 | PHONY += $(vmlinux-dirs) |
944 | $(vmlinux-dirs): prepare scripts | 944 | $(vmlinux-dirs): prepare scripts |
945 | $(Q)$(MAKE) $(build)=$@ | 945 | $(Q)$(MAKE) $(build)=$@ |
946 | 946 | ||
947 | # Store (new) KERNELRELASE string in include/config/kernel.release | 947 | # Store (new) KERNELRELASE string in include/config/kernel.release |
948 | include/config/kernel.release: include/config/auto.conf FORCE | 948 | include/config/kernel.release: include/config/auto.conf FORCE |
949 | $(Q)rm -f $@ | 949 | $(Q)rm -f $@ |
950 | $(Q)echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" > $@ | 950 | $(Q)echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" > $@ |
951 | 951 | ||
952 | 952 | ||
953 | # Things we need to do before we recursively start building the kernel | 953 | # Things we need to do before we recursively start building the kernel |
954 | # or the modules are listed in "prepare". | 954 | # or the modules are listed in "prepare". |
955 | # A multi level approach is used. prepareN is processed before prepareN-1. | 955 | # A multi level approach is used. prepareN is processed before prepareN-1. |
956 | # archprepare is used in arch Makefiles and when processed asm symlink, | 956 | # archprepare is used in arch Makefiles and when processed asm symlink, |
957 | # version.h and scripts_basic is processed / created. | 957 | # version.h and scripts_basic is processed / created. |
958 | 958 | ||
959 | # Listed in dependency order | 959 | # Listed in dependency order |
960 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 | 960 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 |
961 | 961 | ||
962 | # prepare3 is used to check if we are building in a separate output directory, | 962 | # prepare3 is used to check if we are building in a separate output directory, |
963 | # and if so do: | 963 | # and if so do: |
964 | # 1) Check that make has not been executed in the kernel src $(srctree) | 964 | # 1) Check that make has not been executed in the kernel src $(srctree) |
965 | prepare3: include/config/kernel.release | 965 | prepare3: include/config/kernel.release |
966 | ifneq ($(KBUILD_SRC),) | 966 | ifneq ($(KBUILD_SRC),) |
967 | @$(kecho) ' Using $(srctree) as source for kernel' | 967 | @$(kecho) ' Using $(srctree) as source for kernel' |
968 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ | 968 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ |
969 | echo " $(srctree) is not clean, please run 'make mrproper'";\ | 969 | echo " $(srctree) is not clean, please run 'make mrproper'";\ |
970 | echo " in the '$(srctree)' directory.";\ | 970 | echo " in the '$(srctree)' directory.";\ |
971 | /bin/false; \ | 971 | /bin/false; \ |
972 | fi; | 972 | fi; |
973 | endif | 973 | endif |
974 | 974 | ||
975 | # prepare2 creates a makefile if using a separate output directory | 975 | # prepare2 creates a makefile if using a separate output directory |
976 | prepare2: prepare3 outputmakefile asm-generic | 976 | prepare2: prepare3 outputmakefile asm-generic |
977 | 977 | ||
978 | prepare1: prepare2 include/linux/version.h include/generated/utsrelease.h \ | 978 | prepare1: prepare2 include/linux/version.h include/generated/utsrelease.h \ |
979 | include/config/auto.conf | 979 | include/config/auto.conf |
980 | $(cmd_crmodverdir) | 980 | $(cmd_crmodverdir) |
981 | 981 | ||
982 | archprepare: archheaders prepare1 scripts_basic | 982 | archprepare: archheaders prepare1 scripts_basic |
983 | 983 | ||
984 | prepare0: archprepare FORCE | 984 | prepare0: archprepare FORCE |
985 | $(Q)$(MAKE) $(build)=. | 985 | $(Q)$(MAKE) $(build)=. |
986 | 986 | ||
987 | # All the preparing.. | 987 | # All the preparing.. |
988 | prepare: prepare0 | 988 | prepare: prepare0 |
989 | 989 | ||
990 | # Generate some files | 990 | # Generate some files |
991 | # --------------------------------------------------------------------------- | 991 | # --------------------------------------------------------------------------- |
992 | 992 | ||
993 | # KERNELRELEASE can change from a few different places, meaning version.h | 993 | # KERNELRELEASE can change from a few different places, meaning version.h |
994 | # needs to be updated, so this check is forced on all builds | 994 | # needs to be updated, so this check is forced on all builds |
995 | 995 | ||
996 | uts_len := 64 | 996 | uts_len := 64 |
997 | define filechk_utsrelease.h | 997 | define filechk_utsrelease.h |
998 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ | 998 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ |
999 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ | 999 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ |
1000 | exit 1; \ | 1000 | exit 1; \ |
1001 | fi; \ | 1001 | fi; \ |
1002 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) | 1002 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) |
1003 | endef | 1003 | endef |
1004 | 1004 | ||
1005 | define filechk_version.h | 1005 | define filechk_version.h |
1006 | (echo \#define LINUX_VERSION_CODE $(shell \ | 1006 | (echo \#define LINUX_VERSION_CODE $(shell \ |
1007 | expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \ | 1007 | expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \ |
1008 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) | 1008 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) |
1009 | endef | 1009 | endef |
1010 | 1010 | ||
1011 | include/linux/version.h: $(srctree)/Makefile FORCE | 1011 | include/linux/version.h: $(srctree)/Makefile FORCE |
1012 | $(call filechk,version.h) | 1012 | $(call filechk,version.h) |
1013 | 1013 | ||
1014 | include/generated/utsrelease.h: include/config/kernel.release FORCE | 1014 | include/generated/utsrelease.h: include/config/kernel.release FORCE |
1015 | $(call filechk,utsrelease.h) | 1015 | $(call filechk,utsrelease.h) |
1016 | 1016 | ||
1017 | PHONY += headerdep | 1017 | PHONY += headerdep |
1018 | headerdep: | 1018 | headerdep: |
1019 | $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \ | 1019 | $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \ |
1020 | $(srctree)/scripts/headerdep.pl -I$(srctree)/include | 1020 | $(srctree)/scripts/headerdep.pl -I$(srctree)/include |
1021 | 1021 | ||
1022 | # --------------------------------------------------------------------------- | 1022 | # --------------------------------------------------------------------------- |
1023 | 1023 | ||
1024 | PHONY += depend dep | 1024 | PHONY += depend dep |
1025 | depend dep: | 1025 | depend dep: |
1026 | @echo '*** Warning: make $@ is unnecessary now.' | 1026 | @echo '*** Warning: make $@ is unnecessary now.' |
1027 | 1027 | ||
1028 | # --------------------------------------------------------------------------- | 1028 | # --------------------------------------------------------------------------- |
1029 | # Firmware install | 1029 | # Firmware install |
1030 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware | 1030 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware |
1031 | export INSTALL_FW_PATH | 1031 | export INSTALL_FW_PATH |
1032 | 1032 | ||
1033 | PHONY += firmware_install | 1033 | PHONY += firmware_install |
1034 | firmware_install: FORCE | 1034 | firmware_install: FORCE |
1035 | @mkdir -p $(objtree)/firmware | 1035 | @mkdir -p $(objtree)/firmware |
1036 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install | 1036 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install |
1037 | 1037 | ||
1038 | # --------------------------------------------------------------------------- | 1038 | # --------------------------------------------------------------------------- |
1039 | # Kernel headers | 1039 | # Kernel headers |
1040 | 1040 | ||
1041 | #Default location for installed headers | 1041 | #Default location for installed headers |
1042 | export INSTALL_HDR_PATH = $(objtree)/usr | 1042 | export INSTALL_HDR_PATH = $(objtree)/usr |
1043 | 1043 | ||
1044 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj | 1044 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj |
1045 | 1045 | ||
1046 | # If we do an all arch process set dst to asm-$(hdr-arch) | 1046 | # If we do an all arch process set dst to asm-$(hdr-arch) |
1047 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) | 1047 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) |
1048 | 1048 | ||
1049 | PHONY += archheaders | 1049 | PHONY += archheaders |
1050 | archheaders: | 1050 | archheaders: |
1051 | 1051 | ||
1052 | PHONY += __headers | 1052 | PHONY += __headers |
1053 | __headers: include/linux/version.h scripts_basic asm-generic archheaders FORCE | 1053 | __headers: include/linux/version.h scripts_basic asm-generic archheaders FORCE |
1054 | $(Q)$(MAKE) $(build)=scripts build_unifdef | 1054 | $(Q)$(MAKE) $(build)=scripts build_unifdef |
1055 | 1055 | ||
1056 | PHONY += headers_install_all | 1056 | PHONY += headers_install_all |
1057 | headers_install_all: | 1057 | headers_install_all: |
1058 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install | 1058 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install |
1059 | 1059 | ||
1060 | PHONY += headers_install | 1060 | PHONY += headers_install |
1061 | headers_install: __headers | 1061 | headers_install: __headers |
1062 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild),, \ | 1062 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild),, \ |
1063 | $(error Headers not exportable for the $(SRCARCH) architecture)) | 1063 | $(error Headers not exportable for the $(SRCARCH) architecture)) |
1064 | $(Q)$(MAKE) $(hdr-inst)=include | 1064 | $(Q)$(MAKE) $(hdr-inst)=include |
1065 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/asm $(hdr-dst) | 1065 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/asm $(hdr-dst) |
1066 | 1066 | ||
1067 | PHONY += headers_check_all | 1067 | PHONY += headers_check_all |
1068 | headers_check_all: headers_install_all | 1068 | headers_check_all: headers_install_all |
1069 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check | 1069 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check |
1070 | 1070 | ||
1071 | PHONY += headers_check | 1071 | PHONY += headers_check |
1072 | headers_check: headers_install | 1072 | headers_check: headers_install |
1073 | $(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1 | 1073 | $(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1 |
1074 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/asm $(hdr-dst) HDRCHECK=1 | 1074 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/asm $(hdr-dst) HDRCHECK=1 |
1075 | 1075 | ||
1076 | # --------------------------------------------------------------------------- | 1076 | # --------------------------------------------------------------------------- |
1077 | # Modules | 1077 | # Modules |
1078 | 1078 | ||
1079 | ifdef CONFIG_MODULES | 1079 | ifdef CONFIG_MODULES |
1080 | 1080 | ||
1081 | # By default, build modules as well | 1081 | # By default, build modules as well |
1082 | 1082 | ||
1083 | all: modules | 1083 | all: modules |
1084 | 1084 | ||
1085 | # Build modules | 1085 | # Build modules |
1086 | # | 1086 | # |
1087 | # A module can be listed more than once in obj-m resulting in | 1087 | # A module can be listed more than once in obj-m resulting in |
1088 | # duplicate lines in modules.order files. Those are removed | 1088 | # duplicate lines in modules.order files. Those are removed |
1089 | # using awk while concatenating to the final file. | 1089 | # using awk while concatenating to the final file. |
1090 | 1090 | ||
1091 | PHONY += modules | 1091 | PHONY += modules |
1092 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin | 1092 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin |
1093 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order | 1093 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order |
1094 | @$(kecho) ' Building modules, stage 2.'; | 1094 | @$(kecho) ' Building modules, stage 2.'; |
1095 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1095 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1096 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild | 1096 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild |
1097 | 1097 | ||
1098 | modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) | 1098 | modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) |
1099 | $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin | 1099 | $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin |
1100 | 1100 | ||
1101 | %/modules.builtin: include/config/auto.conf | 1101 | %/modules.builtin: include/config/auto.conf |
1102 | $(Q)$(MAKE) $(modbuiltin)=$* | 1102 | $(Q)$(MAKE) $(modbuiltin)=$* |
1103 | 1103 | ||
1104 | 1104 | ||
1105 | # Target to prepare building external modules | 1105 | # Target to prepare building external modules |
1106 | PHONY += modules_prepare | 1106 | PHONY += modules_prepare |
1107 | modules_prepare: prepare scripts | 1107 | modules_prepare: prepare scripts |
1108 | 1108 | ||
1109 | # Target to install modules | 1109 | # Target to install modules |
1110 | PHONY += modules_install | 1110 | PHONY += modules_install |
1111 | modules_install: _modinst_ _modinst_post | 1111 | modules_install: _modinst_ _modinst_post |
1112 | 1112 | ||
1113 | PHONY += _modinst_ | 1113 | PHONY += _modinst_ |
1114 | _modinst_: | 1114 | _modinst_: |
1115 | @rm -rf $(MODLIB)/kernel | 1115 | @rm -rf $(MODLIB)/kernel |
1116 | @rm -f $(MODLIB)/source | 1116 | @rm -f $(MODLIB)/source |
1117 | @mkdir -p $(MODLIB)/kernel | 1117 | @mkdir -p $(MODLIB)/kernel |
1118 | @ln -s $(srctree) $(MODLIB)/source | 1118 | @ln -s $(srctree) $(MODLIB)/source |
1119 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ | 1119 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ |
1120 | rm -f $(MODLIB)/build ; \ | 1120 | rm -f $(MODLIB)/build ; \ |
1121 | ln -s $(objtree) $(MODLIB)/build ; \ | 1121 | ln -s $(objtree) $(MODLIB)/build ; \ |
1122 | fi | 1122 | fi |
1123 | @cp -f $(objtree)/modules.order $(MODLIB)/ | 1123 | @cp -f $(objtree)/modules.order $(MODLIB)/ |
1124 | @cp -f $(objtree)/modules.builtin $(MODLIB)/ | 1124 | @cp -f $(objtree)/modules.builtin $(MODLIB)/ |
1125 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1125 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1126 | 1126 | ||
1127 | # This depmod is only for convenience to give the initial | 1127 | # This depmod is only for convenience to give the initial |
1128 | # boot a modules.dep even before / is mounted read-write. However the | 1128 | # boot a modules.dep even before / is mounted read-write. However the |
1129 | # boot script depmod is the master version. | 1129 | # boot script depmod is the master version. |
1130 | PHONY += _modinst_post | 1130 | PHONY += _modinst_post |
1131 | _modinst_post: _modinst_ | 1131 | _modinst_post: _modinst_ |
1132 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst | 1132 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst |
1133 | $(call cmd,depmod) | 1133 | $(call cmd,depmod) |
1134 | 1134 | ||
1135 | else # CONFIG_MODULES | 1135 | else # CONFIG_MODULES |
1136 | 1136 | ||
1137 | # Modules not configured | 1137 | # Modules not configured |
1138 | # --------------------------------------------------------------------------- | 1138 | # --------------------------------------------------------------------------- |
1139 | 1139 | ||
1140 | modules modules_install: FORCE | 1140 | modules modules_install: FORCE |
1141 | @echo | 1141 | @echo |
1142 | @echo "The present kernel configuration has modules disabled." | 1142 | @echo "The present kernel configuration has modules disabled." |
1143 | @echo "Type 'make config' and enable loadable module support." | 1143 | @echo "Type 'make config' and enable loadable module support." |
1144 | @echo "Then build a kernel with module support enabled." | 1144 | @echo "Then build a kernel with module support enabled." |
1145 | @echo | 1145 | @echo |
1146 | @exit 1 | 1146 | @exit 1 |
1147 | 1147 | ||
1148 | endif # CONFIG_MODULES | 1148 | endif # CONFIG_MODULES |
1149 | 1149 | ||
1150 | ### | 1150 | ### |
1151 | # Cleaning is done on three levels. | 1151 | # Cleaning is done on three levels. |
1152 | # make clean Delete most generated files | 1152 | # make clean Delete most generated files |
1153 | # Leave enough to build external modules | 1153 | # Leave enough to build external modules |
1154 | # make mrproper Delete the current configuration, and all generated files | 1154 | # make mrproper Delete the current configuration, and all generated files |
1155 | # make distclean Remove editor backup files, patch leftover files and the like | 1155 | # make distclean Remove editor backup files, patch leftover files and the like |
1156 | 1156 | ||
1157 | # Directories & files removed with 'make clean' | 1157 | # Directories & files removed with 'make clean' |
1158 | CLEAN_DIRS += $(MODVERDIR) | 1158 | CLEAN_DIRS += $(MODVERDIR) |
1159 | CLEAN_FILES += vmlinux System.map \ | 1159 | CLEAN_FILES += vmlinux System.map \ |
1160 | .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map | 1160 | .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map |
1161 | 1161 | ||
1162 | # Directories & files removed with 'make mrproper' | 1162 | # Directories & files removed with 'make mrproper' |
1163 | MRPROPER_DIRS += include/config usr/include include/generated \ | 1163 | MRPROPER_DIRS += include/config usr/include include/generated \ |
1164 | arch/*/include/generated | 1164 | arch/*/include/generated |
1165 | MRPROPER_FILES += .config .config.old .version .old_version \ | 1165 | MRPROPER_FILES += .config .config.old .version .old_version \ |
1166 | include/linux/version.h \ | 1166 | include/linux/version.h \ |
1167 | Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS | 1167 | Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS |
1168 | 1168 | ||
1169 | # clean - Delete most, but leave enough to build external modules | 1169 | # clean - Delete most, but leave enough to build external modules |
1170 | # | 1170 | # |
1171 | clean: rm-dirs := $(CLEAN_DIRS) | 1171 | clean: rm-dirs := $(CLEAN_DIRS) |
1172 | clean: rm-files := $(CLEAN_FILES) | 1172 | clean: rm-files := $(CLEAN_FILES) |
1173 | clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation) | 1173 | clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation) |
1174 | 1174 | ||
1175 | PHONY += $(clean-dirs) clean archclean | 1175 | PHONY += $(clean-dirs) clean archclean |
1176 | $(clean-dirs): | 1176 | $(clean-dirs): |
1177 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1177 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
1178 | 1178 | ||
1179 | clean: archclean | 1179 | clean: archclean |
1180 | 1180 | ||
1181 | # mrproper - Delete all generated files, including .config | 1181 | # mrproper - Delete all generated files, including .config |
1182 | # | 1182 | # |
1183 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) | 1183 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) |
1184 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) | 1184 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) |
1185 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) | 1185 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) |
1186 | 1186 | ||
1187 | PHONY += $(mrproper-dirs) mrproper archmrproper | 1187 | PHONY += $(mrproper-dirs) mrproper archmrproper |
1188 | $(mrproper-dirs): | 1188 | $(mrproper-dirs): |
1189 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) | 1189 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) |
1190 | 1190 | ||
1191 | mrproper: clean archmrproper $(mrproper-dirs) | 1191 | mrproper: clean archmrproper $(mrproper-dirs) |
1192 | $(call cmd,rmdirs) | 1192 | $(call cmd,rmdirs) |
1193 | $(call cmd,rmfiles) | 1193 | $(call cmd,rmfiles) |
1194 | 1194 | ||
1195 | # distclean | 1195 | # distclean |
1196 | # | 1196 | # |
1197 | PHONY += distclean | 1197 | PHONY += distclean |
1198 | 1198 | ||
1199 | distclean: mrproper | 1199 | distclean: mrproper |
1200 | @find $(srctree) $(RCS_FIND_IGNORE) \ | 1200 | @find $(srctree) $(RCS_FIND_IGNORE) \ |
1201 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ | 1201 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ |
1202 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ | 1202 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ |
1203 | -o -name '.*.rej' \ | 1203 | -o -name '.*.rej' \ |
1204 | -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ | 1204 | -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ |
1205 | -type f -print | xargs rm -f | 1205 | -type f -print | xargs rm -f |
1206 | 1206 | ||
1207 | 1207 | ||
1208 | # Packaging of the kernel to various formats | 1208 | # Packaging of the kernel to various formats |
1209 | # --------------------------------------------------------------------------- | 1209 | # --------------------------------------------------------------------------- |
1210 | # rpm target kept for backward compatibility | 1210 | # rpm target kept for backward compatibility |
1211 | package-dir := $(srctree)/scripts/package | 1211 | package-dir := $(srctree)/scripts/package |
1212 | 1212 | ||
1213 | %src-pkg: FORCE | 1213 | %src-pkg: FORCE |
1214 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1214 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
1215 | %pkg: include/config/kernel.release FORCE | 1215 | %pkg: include/config/kernel.release FORCE |
1216 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1216 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
1217 | rpm: include/config/kernel.release FORCE | 1217 | rpm: include/config/kernel.release FORCE |
1218 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1218 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
1219 | 1219 | ||
1220 | 1220 | ||
1221 | # Brief documentation of the typical targets used | 1221 | # Brief documentation of the typical targets used |
1222 | # --------------------------------------------------------------------------- | 1222 | # --------------------------------------------------------------------------- |
1223 | 1223 | ||
1224 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) | 1224 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) |
1225 | boards := $(notdir $(boards)) | 1225 | boards := $(notdir $(boards)) |
1226 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) | 1226 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) |
1227 | board-dirs := $(sort $(notdir $(board-dirs:/=))) | 1227 | board-dirs := $(sort $(notdir $(board-dirs:/=))) |
1228 | 1228 | ||
1229 | help: | 1229 | help: |
1230 | @echo 'Cleaning targets:' | 1230 | @echo 'Cleaning targets:' |
1231 | @echo ' clean - Remove most generated files but keep the config and' | 1231 | @echo ' clean - Remove most generated files but keep the config and' |
1232 | @echo ' enough build support to build external modules' | 1232 | @echo ' enough build support to build external modules' |
1233 | @echo ' mrproper - Remove all generated files + config + various backup files' | 1233 | @echo ' mrproper - Remove all generated files + config + various backup files' |
1234 | @echo ' distclean - mrproper + remove editor backup and patch files' | 1234 | @echo ' distclean - mrproper + remove editor backup and patch files' |
1235 | @echo '' | 1235 | @echo '' |
1236 | @echo 'Configuration targets:' | 1236 | @echo 'Configuration targets:' |
1237 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help | 1237 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help |
1238 | @echo '' | 1238 | @echo '' |
1239 | @echo 'Other generic targets:' | 1239 | @echo 'Other generic targets:' |
1240 | @echo ' all - Build all targets marked with [*]' | 1240 | @echo ' all - Build all targets marked with [*]' |
1241 | @echo '* vmlinux - Build the bare kernel' | 1241 | @echo '* vmlinux - Build the bare kernel' |
1242 | @echo '* modules - Build all modules' | 1242 | @echo '* modules - Build all modules' |
1243 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' | 1243 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' |
1244 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' | 1244 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' |
1245 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' | 1245 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' |
1246 | @echo ' dir/ - Build all files in dir and below' | 1246 | @echo ' dir/ - Build all files in dir and below' |
1247 | @echo ' dir/file.[oisS] - Build specified target only' | 1247 | @echo ' dir/file.[oisS] - Build specified target only' |
1248 | @echo ' dir/file.lst - Build specified mixed source/assembly target only' | 1248 | @echo ' dir/file.lst - Build specified mixed source/assembly target only' |
1249 | @echo ' (requires a recent binutils and recent build (System.map))' | 1249 | @echo ' (requires a recent binutils and recent build (System.map))' |
1250 | @echo ' dir/file.ko - Build module including final link' | 1250 | @echo ' dir/file.ko - Build module including final link' |
1251 | @echo ' modules_prepare - Set up for building external modules' | 1251 | @echo ' modules_prepare - Set up for building external modules' |
1252 | @echo ' tags/TAGS - Generate tags file for editors' | 1252 | @echo ' tags/TAGS - Generate tags file for editors' |
1253 | @echo ' cscope - Generate cscope index' | 1253 | @echo ' cscope - Generate cscope index' |
1254 | @echo ' gtags - Generate GNU GLOBAL index' | 1254 | @echo ' gtags - Generate GNU GLOBAL index' |
1255 | @echo ' kernelrelease - Output the release version string' | 1255 | @echo ' kernelrelease - Output the release version string' |
1256 | @echo ' kernelversion - Output the version stored in Makefile' | 1256 | @echo ' kernelversion - Output the version stored in Makefile' |
1257 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ | 1257 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ |
1258 | echo ' (default: $(INSTALL_HDR_PATH))'; \ | 1258 | echo ' (default: $(INSTALL_HDR_PATH))'; \ |
1259 | echo '' | 1259 | echo '' |
1260 | @echo 'Static analysers' | 1260 | @echo 'Static analysers' |
1261 | @echo ' checkstack - Generate a list of stack hogs' | 1261 | @echo ' checkstack - Generate a list of stack hogs' |
1262 | @echo ' namespacecheck - Name space analysis on compiled kernel' | 1262 | @echo ' namespacecheck - Name space analysis on compiled kernel' |
1263 | @echo ' versioncheck - Sanity check on version.h usage' | 1263 | @echo ' versioncheck - Sanity check on version.h usage' |
1264 | @echo ' includecheck - Check for duplicate included header files' | 1264 | @echo ' includecheck - Check for duplicate included header files' |
1265 | @echo ' export_report - List the usages of all exported symbols' | 1265 | @echo ' export_report - List the usages of all exported symbols' |
1266 | @echo ' headers_check - Sanity check on exported headers' | 1266 | @echo ' headers_check - Sanity check on exported headers' |
1267 | @echo ' headerdep - Detect inclusion cycles in headers' | 1267 | @echo ' headerdep - Detect inclusion cycles in headers' |
1268 | @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help | 1268 | @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help |
1269 | @echo '' | 1269 | @echo '' |
1270 | @echo 'Kernel packaging:' | 1270 | @echo 'Kernel packaging:' |
1271 | @$(MAKE) $(build)=$(package-dir) help | 1271 | @$(MAKE) $(build)=$(package-dir) help |
1272 | @echo '' | 1272 | @echo '' |
1273 | @echo 'Documentation targets:' | 1273 | @echo 'Documentation targets:' |
1274 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp | 1274 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp |
1275 | @echo '' | 1275 | @echo '' |
1276 | @echo 'Architecture specific targets ($(SRCARCH)):' | 1276 | @echo 'Architecture specific targets ($(SRCARCH)):' |
1277 | @$(if $(archhelp),$(archhelp),\ | 1277 | @$(if $(archhelp),$(archhelp),\ |
1278 | echo ' No architecture specific help defined for $(SRCARCH)') | 1278 | echo ' No architecture specific help defined for $(SRCARCH)') |
1279 | @echo '' | 1279 | @echo '' |
1280 | @$(if $(boards), \ | 1280 | @$(if $(boards), \ |
1281 | $(foreach b, $(boards), \ | 1281 | $(foreach b, $(boards), \ |
1282 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ | 1282 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ |
1283 | echo '') | 1283 | echo '') |
1284 | @$(if $(board-dirs), \ | 1284 | @$(if $(board-dirs), \ |
1285 | $(foreach b, $(board-dirs), \ | 1285 | $(foreach b, $(board-dirs), \ |
1286 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ | 1286 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ |
1287 | printf " %-16s - Show all of the above\\n" help-boards; \ | 1287 | printf " %-16s - Show all of the above\\n" help-boards; \ |
1288 | echo '') | 1288 | echo '') |
1289 | 1289 | ||
1290 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' | 1290 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' |
1291 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' | 1291 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' |
1292 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' | 1292 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' |
1293 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' | 1293 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' |
1294 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' | 1294 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' |
1295 | @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' | 1295 | @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' |
1296 | @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' | 1296 | @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' |
1297 | @echo ' 1: warnings which may be relevant and do not occur too often' | 1297 | @echo ' 1: warnings which may be relevant and do not occur too often' |
1298 | @echo ' 2: warnings which occur quite often but may still be relevant' | 1298 | @echo ' 2: warnings which occur quite often but may still be relevant' |
1299 | @echo ' 3: more obscure warnings, can most likely be ignored' | 1299 | @echo ' 3: more obscure warnings, can most likely be ignored' |
1300 | @echo ' Multiple levels can be combined with W=12 or W=123' | 1300 | @echo ' Multiple levels can be combined with W=12 or W=123' |
1301 | @echo '' | 1301 | @echo '' |
1302 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' | 1302 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' |
1303 | @echo 'For further info see the ./README file' | 1303 | @echo 'For further info see the ./README file' |
1304 | 1304 | ||
1305 | 1305 | ||
1306 | help-board-dirs := $(addprefix help-,$(board-dirs)) | 1306 | help-board-dirs := $(addprefix help-,$(board-dirs)) |
1307 | 1307 | ||
1308 | help-boards: $(help-board-dirs) | 1308 | help-boards: $(help-board-dirs) |
1309 | 1309 | ||
1310 | boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) | 1310 | boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) |
1311 | 1311 | ||
1312 | $(help-board-dirs): help-%: | 1312 | $(help-board-dirs): help-%: |
1313 | @echo 'Architecture specific targets ($(SRCARCH) $*):' | 1313 | @echo 'Architecture specific targets ($(SRCARCH) $*):' |
1314 | @$(if $(boards-per-dir), \ | 1314 | @$(if $(boards-per-dir), \ |
1315 | $(foreach b, $(boards-per-dir), \ | 1315 | $(foreach b, $(boards-per-dir), \ |
1316 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ | 1316 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ |
1317 | echo '') | 1317 | echo '') |
1318 | 1318 | ||
1319 | 1319 | ||
1320 | # Documentation targets | 1320 | # Documentation targets |
1321 | # --------------------------------------------------------------------------- | 1321 | # --------------------------------------------------------------------------- |
1322 | %docs: scripts_basic FORCE | 1322 | %docs: scripts_basic FORCE |
1323 | $(Q)$(MAKE) $(build)=scripts build_docproc | 1323 | $(Q)$(MAKE) $(build)=scripts build_docproc |
1324 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ | 1324 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ |
1325 | 1325 | ||
1326 | else # KBUILD_EXTMOD | 1326 | else # KBUILD_EXTMOD |
1327 | 1327 | ||
1328 | ### | 1328 | ### |
1329 | # External module support. | 1329 | # External module support. |
1330 | # When building external modules the kernel used as basis is considered | 1330 | # When building external modules the kernel used as basis is considered |
1331 | # read-only, and no consistency checks are made and the make | 1331 | # read-only, and no consistency checks are made and the make |
1332 | # system is not used on the basis kernel. If updates are required | 1332 | # system is not used on the basis kernel. If updates are required |
1333 | # in the basis kernel ordinary make commands (without M=...) must | 1333 | # in the basis kernel ordinary make commands (without M=...) must |
1334 | # be used. | 1334 | # be used. |
1335 | # | 1335 | # |
1336 | # The following are the only valid targets when building external | 1336 | # The following are the only valid targets when building external |
1337 | # modules. | 1337 | # modules. |
1338 | # make M=dir clean Delete all automatically generated files | 1338 | # make M=dir clean Delete all automatically generated files |
1339 | # make M=dir modules Make all modules in specified dir | 1339 | # make M=dir modules Make all modules in specified dir |
1340 | # make M=dir Same as 'make M=dir modules' | 1340 | # make M=dir Same as 'make M=dir modules' |
1341 | # make M=dir modules_install | 1341 | # make M=dir modules_install |
1342 | # Install the modules built in the module directory | 1342 | # Install the modules built in the module directory |
1343 | # Assumes install directory is already created | 1343 | # Assumes install directory is already created |
1344 | 1344 | ||
1345 | # We are always building modules | 1345 | # We are always building modules |
1346 | KBUILD_MODULES := 1 | 1346 | KBUILD_MODULES := 1 |
1347 | PHONY += crmodverdir | 1347 | PHONY += crmodverdir |
1348 | crmodverdir: | 1348 | crmodverdir: |
1349 | $(cmd_crmodverdir) | 1349 | $(cmd_crmodverdir) |
1350 | 1350 | ||
1351 | PHONY += $(objtree)/Module.symvers | 1351 | PHONY += $(objtree)/Module.symvers |
1352 | $(objtree)/Module.symvers: | 1352 | $(objtree)/Module.symvers: |
1353 | @test -e $(objtree)/Module.symvers || ( \ | 1353 | @test -e $(objtree)/Module.symvers || ( \ |
1354 | echo; \ | 1354 | echo; \ |
1355 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ | 1355 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ |
1356 | echo " is missing; modules will have no dependencies and modversions."; \ | 1356 | echo " is missing; modules will have no dependencies and modversions."; \ |
1357 | echo ) | 1357 | echo ) |
1358 | 1358 | ||
1359 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) | 1359 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) |
1360 | PHONY += $(module-dirs) modules | 1360 | PHONY += $(module-dirs) modules |
1361 | $(module-dirs): crmodverdir $(objtree)/Module.symvers | 1361 | $(module-dirs): crmodverdir $(objtree)/Module.symvers |
1362 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) | 1362 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) |
1363 | 1363 | ||
1364 | modules: $(module-dirs) | 1364 | modules: $(module-dirs) |
1365 | @$(kecho) ' Building modules, stage 2.'; | 1365 | @$(kecho) ' Building modules, stage 2.'; |
1366 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1366 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1367 | 1367 | ||
1368 | PHONY += modules_install | 1368 | PHONY += modules_install |
1369 | modules_install: _emodinst_ _emodinst_post | 1369 | modules_install: _emodinst_ _emodinst_post |
1370 | 1370 | ||
1371 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) | 1371 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) |
1372 | PHONY += _emodinst_ | 1372 | PHONY += _emodinst_ |
1373 | _emodinst_: | 1373 | _emodinst_: |
1374 | $(Q)mkdir -p $(MODLIB)/$(install-dir) | 1374 | $(Q)mkdir -p $(MODLIB)/$(install-dir) |
1375 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1375 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1376 | 1376 | ||
1377 | PHONY += _emodinst_post | 1377 | PHONY += _emodinst_post |
1378 | _emodinst_post: _emodinst_ | 1378 | _emodinst_post: _emodinst_ |
1379 | $(call cmd,depmod) | 1379 | $(call cmd,depmod) |
1380 | 1380 | ||
1381 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) | 1381 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) |
1382 | 1382 | ||
1383 | PHONY += $(clean-dirs) clean | 1383 | PHONY += $(clean-dirs) clean |
1384 | $(clean-dirs): | 1384 | $(clean-dirs): |
1385 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1385 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
1386 | 1386 | ||
1387 | clean: rm-dirs := $(MODVERDIR) | 1387 | clean: rm-dirs := $(MODVERDIR) |
1388 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers | 1388 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers |
1389 | 1389 | ||
1390 | help: | 1390 | help: |
1391 | @echo ' Building external modules.' | 1391 | @echo ' Building external modules.' |
1392 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' | 1392 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' |
1393 | @echo '' | 1393 | @echo '' |
1394 | @echo ' modules - default target, build the module(s)' | 1394 | @echo ' modules - default target, build the module(s)' |
1395 | @echo ' modules_install - install the module' | 1395 | @echo ' modules_install - install the module' |
1396 | @echo ' clean - remove generated files in module directory only' | 1396 | @echo ' clean - remove generated files in module directory only' |
1397 | @echo '' | 1397 | @echo '' |
1398 | 1398 | ||
1399 | # Dummies... | 1399 | # Dummies... |
1400 | PHONY += prepare scripts | 1400 | PHONY += prepare scripts |
1401 | prepare: ; | 1401 | prepare: ; |
1402 | scripts: ; | 1402 | scripts: ; |
1403 | endif # KBUILD_EXTMOD | 1403 | endif # KBUILD_EXTMOD |
1404 | 1404 | ||
1405 | clean: $(clean-dirs) | 1405 | clean: $(clean-dirs) |
1406 | $(call cmd,rmdirs) | 1406 | $(call cmd,rmdirs) |
1407 | $(call cmd,rmfiles) | 1407 | $(call cmd,rmfiles) |
1408 | @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ | 1408 | @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ |
1409 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ | 1409 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
1410 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ | 1410 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ |
1411 | -o -name '*.symtypes' -o -name 'modules.order' \ | 1411 | -o -name '*.symtypes' -o -name 'modules.order' \ |
1412 | -o -name modules.builtin -o -name '.tmp_*.o.*' \ | 1412 | -o -name modules.builtin -o -name '.tmp_*.o.*' \ |
1413 | -o -name '*.gcno' \) -type f -print | xargs rm -f | 1413 | -o -name '*.gcno' \) -type f -print | xargs rm -f |
1414 | 1414 | ||
1415 | # Generate tags for editors | 1415 | # Generate tags for editors |
1416 | # --------------------------------------------------------------------------- | 1416 | # --------------------------------------------------------------------------- |
1417 | quiet_cmd_tags = GEN $@ | 1417 | quiet_cmd_tags = GEN $@ |
1418 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ | 1418 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ |
1419 | 1419 | ||
1420 | tags TAGS cscope gtags: FORCE | 1420 | tags TAGS cscope gtags: FORCE |
1421 | $(call cmd,tags) | 1421 | $(call cmd,tags) |
1422 | 1422 | ||
1423 | # Scripts to check various things for consistency | 1423 | # Scripts to check various things for consistency |
1424 | # --------------------------------------------------------------------------- | 1424 | # --------------------------------------------------------------------------- |
1425 | 1425 | ||
1426 | PHONY += includecheck versioncheck coccicheck namespacecheck export_report | 1426 | PHONY += includecheck versioncheck coccicheck namespacecheck export_report |
1427 | 1427 | ||
1428 | includecheck: | 1428 | includecheck: |
1429 | find $(srctree)/* $(RCS_FIND_IGNORE) \ | 1429 | find $(srctree)/* $(RCS_FIND_IGNORE) \ |
1430 | -name '*.[hcS]' -type f -print | sort \ | 1430 | -name '*.[hcS]' -type f -print | sort \ |
1431 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl | 1431 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl |
1432 | 1432 | ||
1433 | versioncheck: | 1433 | versioncheck: |
1434 | find $(srctree)/* $(RCS_FIND_IGNORE) \ | 1434 | find $(srctree)/* $(RCS_FIND_IGNORE) \ |
1435 | -name '*.[hcS]' -type f -print | sort \ | 1435 | -name '*.[hcS]' -type f -print | sort \ |
1436 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl | 1436 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl |
1437 | 1437 | ||
1438 | coccicheck: | 1438 | coccicheck: |
1439 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ | 1439 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ |
1440 | 1440 | ||
1441 | namespacecheck: | 1441 | namespacecheck: |
1442 | $(PERL) $(srctree)/scripts/namespace.pl | 1442 | $(PERL) $(srctree)/scripts/namespace.pl |
1443 | 1443 | ||
1444 | export_report: | 1444 | export_report: |
1445 | $(PERL) $(srctree)/scripts/export_report.pl | 1445 | $(PERL) $(srctree)/scripts/export_report.pl |
1446 | 1446 | ||
1447 | endif #ifeq ($(config-targets),1) | 1447 | endif #ifeq ($(config-targets),1) |
1448 | endif #ifeq ($(mixed-targets),1) | 1448 | endif #ifeq ($(mixed-targets),1) |
1449 | 1449 | ||
1450 | PHONY += checkstack kernelrelease kernelversion | 1450 | PHONY += checkstack kernelrelease kernelversion |
1451 | 1451 | ||
1452 | # UML needs a little special treatment here. It wants to use the host | 1452 | # UML needs a little special treatment here. It wants to use the host |
1453 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone | 1453 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone |
1454 | # else wants $(ARCH), including people doing cross-builds, which means | 1454 | # else wants $(ARCH), including people doing cross-builds, which means |
1455 | # that $(SUBARCH) doesn't work here. | 1455 | # that $(SUBARCH) doesn't work here. |
1456 | ifeq ($(ARCH), um) | 1456 | ifeq ($(ARCH), um) |
1457 | CHECKSTACK_ARCH := $(SUBARCH) | 1457 | CHECKSTACK_ARCH := $(SUBARCH) |
1458 | else | 1458 | else |
1459 | CHECKSTACK_ARCH := $(ARCH) | 1459 | CHECKSTACK_ARCH := $(ARCH) |
1460 | endif | 1460 | endif |
1461 | checkstack: | 1461 | checkstack: |
1462 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ | 1462 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ |
1463 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) | 1463 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) |
1464 | 1464 | ||
1465 | kernelrelease: | 1465 | kernelrelease: |
1466 | @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" | 1466 | @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" |
1467 | 1467 | ||
1468 | kernelversion: | 1468 | kernelversion: |
1469 | @echo $(KERNELVERSION) | 1469 | @echo $(KERNELVERSION) |
1470 | 1470 | ||
1471 | # Single targets | 1471 | # Single targets |
1472 | # --------------------------------------------------------------------------- | 1472 | # --------------------------------------------------------------------------- |
1473 | # Single targets are compatible with: | 1473 | # Single targets are compatible with: |
1474 | # - build with mixed source and output | 1474 | # - build with mixed source and output |
1475 | # - build with separate output dir 'make O=...' | 1475 | # - build with separate output dir 'make O=...' |
1476 | # - external modules | 1476 | # - external modules |
1477 | # | 1477 | # |
1478 | # target-dir => where to store outputfile | 1478 | # target-dir => where to store outputfile |
1479 | # build-dir => directory in kernel source tree to use | 1479 | # build-dir => directory in kernel source tree to use |
1480 | 1480 | ||
1481 | ifeq ($(KBUILD_EXTMOD),) | 1481 | ifeq ($(KBUILD_EXTMOD),) |
1482 | build-dir = $(patsubst %/,%,$(dir $@)) | 1482 | build-dir = $(patsubst %/,%,$(dir $@)) |
1483 | target-dir = $(dir $@) | 1483 | target-dir = $(dir $@) |
1484 | else | 1484 | else |
1485 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) | 1485 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) |
1486 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) | 1486 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) |
1487 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) | 1487 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) |
1488 | endif | 1488 | endif |
1489 | 1489 | ||
1490 | %.s: %.c prepare scripts FORCE | 1490 | %.s: %.c prepare scripts FORCE |
1491 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1491 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1492 | %.i: %.c prepare scripts FORCE | 1492 | %.i: %.c prepare scripts FORCE |
1493 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1493 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1494 | %.o: %.c prepare scripts FORCE | 1494 | %.o: %.c prepare scripts FORCE |
1495 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1495 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1496 | %.lst: %.c prepare scripts FORCE | 1496 | %.lst: %.c prepare scripts FORCE |
1497 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1497 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1498 | %.s: %.S prepare scripts FORCE | 1498 | %.s: %.S prepare scripts FORCE |
1499 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1499 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1500 | %.o: %.S prepare scripts FORCE | 1500 | %.o: %.S prepare scripts FORCE |
1501 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1501 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1502 | %.symtypes: %.c prepare scripts FORCE | 1502 | %.symtypes: %.c prepare scripts FORCE |
1503 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1503 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1504 | 1504 | ||
1505 | # Modules | 1505 | # Modules |
1506 | /: prepare scripts FORCE | 1506 | /: prepare scripts FORCE |
1507 | $(cmd_crmodverdir) | 1507 | $(cmd_crmodverdir) |
1508 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1508 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
1509 | $(build)=$(build-dir) | 1509 | $(build)=$(build-dir) |
1510 | %/: prepare scripts FORCE | 1510 | %/: prepare scripts FORCE |
1511 | $(cmd_crmodverdir) | 1511 | $(cmd_crmodverdir) |
1512 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1512 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
1513 | $(build)=$(build-dir) | 1513 | $(build)=$(build-dir) |
1514 | %.ko: prepare scripts FORCE | 1514 | %.ko: prepare scripts FORCE |
1515 | $(cmd_crmodverdir) | 1515 | $(cmd_crmodverdir) |
1516 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1516 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
1517 | $(build)=$(build-dir) $(@:.ko=.o) | 1517 | $(build)=$(build-dir) $(@:.ko=.o) |
1518 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1518 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1519 | 1519 | ||
1520 | # FIXME Should go into a make.lib or something | 1520 | # FIXME Should go into a make.lib or something |
1521 | # =========================================================================== | 1521 | # =========================================================================== |
1522 | 1522 | ||
1523 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) | 1523 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) |
1524 | cmd_rmdirs = rm -rf $(rm-dirs) | 1524 | cmd_rmdirs = rm -rf $(rm-dirs) |
1525 | 1525 | ||
1526 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) | 1526 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) |
1527 | cmd_rmfiles = rm -f $(rm-files) | 1527 | cmd_rmfiles = rm -f $(rm-files) |
1528 | 1528 | ||
1529 | # Run depmod only if we have System.map and depmod is executable | 1529 | # Run depmod only if we have System.map and depmod is executable |
1530 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) | 1530 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) |
1531 | cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \ | 1531 | cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \ |
1532 | $(KERNELRELEASE) | 1532 | $(KERNELRELEASE) |
1533 | 1533 | ||
1534 | # Create temporary dir for module support files | 1534 | # Create temporary dir for module support files |
1535 | # clean it up only when building all modules | 1535 | # clean it up only when building all modules |
1536 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ | 1536 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ |
1537 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) | 1537 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) |
1538 | 1538 | ||
1539 | a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \ | 1539 | a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \ |
1540 | $(KBUILD_AFLAGS_KERNEL) \ | 1540 | $(KBUILD_AFLAGS_KERNEL) \ |
1541 | $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \ | 1541 | $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \ |
1542 | $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) | 1542 | $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) |
1543 | 1543 | ||
1544 | quiet_cmd_as_o_S = AS $@ | 1544 | quiet_cmd_as_o_S = AS $@ |
1545 | cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< | 1545 | cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< |
1546 | 1546 | ||
1547 | # read all saved command lines | 1547 | # read all saved command lines |
1548 | 1548 | ||
1549 | targets := $(wildcard $(sort $(targets))) | 1549 | targets := $(wildcard $(sort $(targets))) |
1550 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) | 1550 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) |
1551 | 1551 | ||
1552 | ifneq ($(cmd_files),) | 1552 | ifneq ($(cmd_files),) |
1553 | $(cmd_files): ; # Do not try to update included dependency files | 1553 | $(cmd_files): ; # Do not try to update included dependency files |
1554 | include $(cmd_files) | 1554 | include $(cmd_files) |
1555 | endif | 1555 | endif |
1556 | 1556 | ||
1557 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir | 1557 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir |
1558 | # Usage: | 1558 | # Usage: |
1559 | # $(Q)$(MAKE) $(clean)=dir | 1559 | # $(Q)$(MAKE) $(clean)=dir |
1560 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj | 1560 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj |
1561 | 1561 | ||
1562 | endif # skip-makefile | 1562 | endif # skip-makefile |
1563 | 1563 | ||
1564 | PHONY += FORCE | 1564 | PHONY += FORCE |
1565 | FORCE: | 1565 | FORCE: |
1566 | 1566 | ||
1567 | # Declare the contents of the .PHONY variable as phony. We keep that | 1567 | # Declare the contents of the .PHONY variable as phony. We keep that |
1568 | # information in a variable so we can use it in if_changed and friends. | 1568 | # information in a variable so we can use it in if_changed and friends. |
1569 | .PHONY: $(PHONY) | 1569 | .PHONY: $(PHONY) |
1570 | 1570 |